text: what do dreams about having sex with ex mean? my boyfriend has had a couple of dreams about him and his ex having sex. he says it was a nightmare but i really feel insecure about it. don't. dreams are where you work out internal struggles and unwanted emotions. if he is boinking her in his dreams and you while he's awake, you're fine. the fact that he told you about it should go to say something about his character. if he was going to dump you so he could go back and have a fling with her, he wouldn't tell you about the dream.   however, if he is trying to destroy you emotionally so he can make you feel so insecure that you will do anything for him then maybe he's telling you for a different reason. it all depends on what kind of a guy he is, and you will know that better than any of us ever could.   when you post a question like this you have to take these answers with a grain of salt. i mean you got a guy up there telling you he's cheating and then advertising a dating website, can you see that dichotomy?   trust your instincts. if you are insecure about it, why is that? is it because you don't want him to dream about certain things. well that's just silly, you aren't going to be able to control his dreams, as a matter of fact, he can't even do that! if you are insecure because you don't feel like you can match up to his dreams then you either have a low self esteem or he has some really, really wild dreams.  your insecurity must have been present long before you started dating this guy, that's evident in your inability to create a unique username...hollybarry08. this is just a guy and that chick was just his ex. these relationships exist between every single person on earth. before you can move forward with a relationship you have to leave the past behind you.