I like your comment, but a quick question: Have you never had feelings of attraction for another man while in a relationship? Have you ever had another man flirt with you, and maybe you didn't flirt back, but you enjoyed the attention? If you've never experienced either, then you're young and although you don't know me, trust me. I'm very experienced in life. Either way, both are serious feelings, both are what you're condemning this guy for. How would you feel if you were treated so harshly because of your feelings?

Or maybe they have just been happy in the relationships that they're in? If you're happy in a relationship, you don't 'fall' for someone else. I have to agree with 172, if my partner was seriously considering someone else, I'd rather he just leave and if he doesn't I'll leave first. It would be a sign that he doesn't actually love you anymore and is just hanging around until something better comes along. How do you define 'feeling attraction' toward someone. Is it attraction because they look attractive or more of a 'wow, lets jump in bed' thing? Cause tbh, everyone looks at other people, but considering seriously being with them is a completely different thing. Enjoying a bit of attention if someone attempts to flirt with you isn't the same as cheating if you're not encouraging the flirting. Again, if you're not a douchebag and you're in a happy relationship these things don't happen.

I'm older than I look, but that doesn't have anything to so with it. The op said he's been "seeing" another girl which implies he's been getting to know someone else. Of course I appreciate compliments from other people but at the end of the day I never feel like I would want to trade that in for my current boyfriend. I love him and I'm not looking around for anything else and I would expect the same for the other party.

*do

Girls have trust issues with guys because they expect guys to behave like them and they don't truly understand what it means to be a man Just like men don't truly understand women and what it means to be a woman. Men typically don't have the emotional capacity women do, and because of the time period we're in, women don't generally have a strong emotional support group (a group of other women) in their life they can turn to, so instinctively they turn to their man to be that emotional, sympathetic, support system, and we literally don't have it in us. Women don't trust men for the same reason men don't trust women. Lack of knowledge and misunderstandings. Men and Women's psychology laid on you. Take some notes.

Some of us guys also have trust issues with girls..in my case, I wasted the better part of 13 yrs with a gal who constantly cheated on me...on the bright side, I reconnected with a child hood sweet heart (after 16 yrs of no contact) & have been married (going on 5 yrs now) but I still wonder sometimes because she had cheated on her ex husband 7 yrs ago.

Wanted to also add but ran out of edit time. That you need to sit down with both girls (obviously not at the same time) and tell them what is going on. Even if you decide not to tell this new 'wonderful girl' now, she could find out years later and possibly ruin that relationship as well. Best to start a relationship with honesty, than with deceit. Or atleast make amends with what you have already been doing and start fresh. I'm sure you will feel better as well.