Originally Posted by
TheEvilJester
To be perfectly honest with you, going just based on what you have shared with us, my first instinct would be to tell you to end this relationship and do not look back. The guy kind of sounds like a psycho to me. BUT, take that with a grain of salt. That is only going based on what you have told us, and I am sure it isn't like you have shared every single little detail. Without being him or you, I don't think any of us could necessarily tell you what to do, but we can at least offer our thoughts and advice.
As Wakeup points out, you've left out one pretty majorly important detail..... What do you want with this guy? Do you want to remain as just "friends with benefits" or do you want to potentially take the relationship more seriously? If you really have no interest in becoming more serious (or at least not now) and wish to remain "FWB," then you should probably end things. Maybe it is just me, but it definitely does NOT sound like he just wants to be your friend with benefits. I would agree that a lot of the stuff you have told us sounds to me more like he likes you and wants a more serious relationship. If that IS the case, he needs to man up and just say so. Maybe you'll want that, maybe you won't, but he can't keep acting like a child and not being up front about what he wants. If you ARE just FWB, then he has no right to bug you about what you may or may not do with other men, women, or whatever you are into.
By the way, unless there are also further details you didn't mention, I fail to see how you "messed up" at all. If you and he were only really dating at the time, and not at all exclusive, then how does he have any right to begrudge you for dating another guy, two other guys, three other guys, heck even 300 other guys at the time? If there was no implied and/or directly stated exclusivity, then there is nothing saying you can't do just that.
Anyways, again, only you can really know what is best in this situation. I hope we were able to help at least a little bit, though. Even if just to offer a different person's perspective, and a little of our own thoughts and advice. Good luck to you.