My girlfriend and I got together about 5 years ago. She was my first relationship ever. Since early 2018, she has been serious considering joining the marines. In September of 2018, we split, due to her feeling “stuck.” (The Whole reason she was going to the marines.) 

By the new year, we are back together. I want to be with her, but she still wants to go to the marines. I’ve told her I don’t want to maintain a long distance relationship. Her and I are together almost all the time, and any time apart isn’t very fun. She is pissed at me for making her choose between the marines and me. 

I feel that if she goes away and we stay together, I won’t be faithful. I’m a young guy, who’s only been with one person. The thought is always in the back of my head of what the dating world is like. Not enough to leave my girlfriend, but if she’s gone for months at a time, I don’t know if I could not give in to temptation. 

I know I should love her enough to wait for her, but I should at least be given a say in her decision to go across the country or world for extended times. AITA for not wanting to maintain a long distance relationship at 21 y/o?