Well my girlfriend and I have been dating for 1 1/2 years, which isn't a long time, but we're almost done with college and met at the right time. We've always talked about marriage and we feel very smart about it (as in..... we're not delusional, but we think we'd get married unless something big came up, but whatever). Anyways, she started dating me like 2 weeks after she stopped dating her best friend over the summer. They had been high school friends, and after 3 years of college they finally hooked up over the summer. What he didn't tell her is that he was still dating his girlfriend in Iowa (where he goes to college) and had no intention of dating her seriously.
So I started dating her because she genuinely liked me and her and I had been friends for a while in college. All is great in our relationship except.... this guy. He's been an issue ever since we've been dating. He's a dirtbag and for the longest time was obviously still interested in her. They used to talk all the time after they had broken up, but after a while they talked very infrequently. She "felt bad about their relationship" and still wanted to be friends with him, like before they had sex. And she still does. Well they hadn't talked for like 3 months but then his mom emailed her saying she wanted her son to go visit her in Mexico (She's studying abroad in Mexico this semester, and the dirtbag's mom likes my gf, but doesn't know anything about her son and my gf's relationship.) So my gf asks me if it's ok if he comes down. I'm like "Uhhh no, why would that be ok?"
Blah blah, long story short I think it's bogus. There are a lot of details, she doesn't like him romantically, she just wishes they could still be friends or "resolve things". Like she feels like she still owes him some resolution. I told her to stop talking to him, but over the last 1 1/2 years he always ends up being an issue, so obviously "Not talking to him" isn't working. I've stopped talking to girls for her, but this is "different."
Anyways, I know she doesn't mean anything mean by it, but she still feels like she can resolve things. Girls are weird. And I'm not entirely sure how I should be reacting. She's always trying to justify herself and I'm always telling her "Fine, resolve it, I want you to resolve it, but as your boyfriend this sucks balls, so maybe call me when you wanna be with me no strings attached?" I'm a huge nerd that doesn't like emotions, how do you think I should be reacting? I still want to marry this girl, but I don't want to have to deal with this asshat every 4 months. He's not going down to Mexico, but apparently it's still an issue she has to confront when she gets back.