How do you now if your boyfriend isn't cheating on you?
610339
Ask him and study his reactions. I'm sure you'll be able to tell if he's lying. It's best to be upfront with your suspicions. Tell him why you think he's cheating. If you keep it to yourself, your suspicions will ruin your relationship.
222775
If you think that he is cheating, then he probably is.  Ask him.  Don't "spy" on him like people are telling you to.  If you have to spy, there is already a trust issue and that is hard to build up a relationship when there is no trust.  Plus, running around and checking up on him is just a waste of your time, and he aint worth it girl!  Take your extra time and find a decent guy that will spend his weekends with YOU!  Good Luck!!!
237550
Whether or not he's cheating seems almost beside the point, because it looks like the relationship is failing regardless.  Focus on that fact.  Sadly, it seems like you aren't as high a priority for him anymore.  You've been together since you were 20 and he was 17?  Wow.  Maybe you should date someone closer to your own age and maturity level.
718542
If there's no trust in the relationship- then you need to examine why you're in the relationship.  It doesn't matter what you do, follow him, check up on him, call him a dozen times to make sure he's where he says he is- If he really wants to cheat, he's going to, and all you're going to do is drive yourself crazy, and drive him away.  Either take a deep breath, and decide you're going to trust him- and then DO IT; or get out of the relationship now.  If you don't have trust- you don't have anything anyway- why sit around and wait for the relationship to get worse by driving each other crazy over what you THINK he MIGHT be doing?  Take a good look at things and decide if you're REALLY getting what you want out of this relationship.  Good luck.
193498
no its not cheating, cheating is if you go out with both of them and they didnt know and all that stuff. wat u did was nothing. if ur boyfriend doesnt trust you,than he doesnt deserve you. dump him. go out w/ someone else (not his cus,only if u want to make him jelous)
31066
Take away the first 5 words in your question and you have your answer.....If you feel he is cheating on you, you can be almost positive he is.
1056647
i wont listen to them. For what reason is he my boyfriend. Of course because he must have been loyal & sincere. But yes if some very close friend would have told me then my case would be different. I'll try to investigate about it.Then i'll ask my boyfriend myself if he has been cheating or not.Cheating is not a big issue till its just flirting but if he would be dating other girls then i would simply hug him n say go0d bye baby...
153167
If any of his actions makes you feel insecure about your relationship, then end it. If what he's doing is making you unsure about his love for you, then why bother continuing. You can never truelly love a person if you're always wondering if he's gonna cheat. To be in a long lasting relationship, you must trust each other, and know your love for each other. \n\nIf he said all his other boyfriends lasted only two months, then you know there must be something wrong with the way he's treating his boyfriends. \n\nIf you don't understand the situation now, it will be alot worse when you find out he is cheating on you. However, don't rush into a conclusion. Chat with him and find out his true feelings for you. If he seems to be hiding something, then carefully decide to break-up or not. If you find out later that your rushed disicion was inncorrect, you'll hate yourself for losing a good boyfriend.
131916
Ask him, be open, and trust is most important. Ask yourself first if you have solid reasons to believe that he has someone else other than you. If you do have solid reasons then proceed to ask him and provide evidence so that he can clearly explain them to you.
127139
talk to him and tell him about the situation..if he really is cheating (which guys normally says "im not cheating!")..caught him in the act..and just think that its not your loss but his!
1026531
how do u kinda cheat on someone? do him a favor... leave him then go get ur head checked.
1084890
Good relationships are built in part on a foundation of trust and respect.  It's obvious that he doesn't trust you because he suspects you of cheating when you are not.  It's also obvious that he doesn't respect you because he doesn't believe you when you tell him the truth.  Based on that, your relationship cannot go far, however much you would like it to.\n\nYou have to decide what you will do now.  No one can really tell you how to live your life.  But it were me, I would break up with this fellow.
888966
If you feel you need to have him investigated and can't trust what he tells you......\n\nfind a new boyfriend.\n\nCut your losses and move on.
186266
The first thing you have to do is ask yourself if you are ok with your guy cheating on you.  If not, forget him and find someone new.  Remember that no matter what he/she tells you, if they cheat with you, they will cheat on ya.
476832
you can tell if he is cheating on you, if he is acting strange when you ask him questions, if he isnt spending as much time with you as  he use too spend. only you can tell if she has changed since you started your relationship. if you are questioning his honesty now, then maybe he is cheating on you.
1033896
You should just casually confront him about the situation and show him the evidence that you have to be suspecting that you believe he is cheating.  While you are confronting and he begins to get really upset for no reason that usually means he is lying.  Ask him to gently tell you the truth and that is all you want to hear.
233780
WOW thats a big one. You say you have evidence right? well use what you got. But not in a way were you will put yourself in a bad spot but us them in question. Things you talk about. Ask if he knows a girl by the name so and so. If you really love this guy. Just keep rememinding him you love him. and that your so happy you guys are together and  that he has never cheated on you. In that point . . He will be nervice looking at the floor and looking for a answer out.