Who really knows over the net, but I wonder if she’s making threats because she’s unhappy enough to want out, but can’t quite get up the courage to end it. So she’s trying to force the OP to be who he isn’t. Ain’t gonna work. She might also be hoping he ends it so she doesn’t have to.
I’m a very independent person by nature. Rejected my high school sweetie who probably would be married to me if I hadn’t put a career interest first. Then in grad school, I met the guy I wanted to marry. Except his career aspirations took him away for months at a time to places so remote we had essentially no contact.
I had no concept that could bother me so much, but it did. So much so that I turned into this clingy, insecure person I didn’t even recognize as me (and which probably drove him crazy). I really resented his absences. When he was gone, I’d drift back to independence and build my own life, but I’d also have to take care of all the details of his life he couldn’t. Paying bills, getting the car fixed, etc. So I’d have all of the work of a relationship, but none of the benefits.
Then he’d come back, and I’d start giving up stuff I’d taken to doing while he was gone in order to make room for him in my life. Except even when he was back, he’d spend long hours at the office and wouldn’t commit to getting together–work came first. The thing is, we were in grad school, and it’s not like there was a boss standing over his shoulder or something if I asked if he could get together with me on a Friday night. So it might be helpful to the OP to consider whether things would really be different in a different career. There’s a possibility it wouldn’t be.
After about two years of this, I did finally stoop to getting really passive aggressive and nasty one night after he came back into the country again and wouldn’t say yes or no to seeing a movie on a Friday night. All of our previous mature attempts to deal with what amounted to my unhappiness with the situation (didn’t bother him a bit) hadn’t helped. So I left a really nasty note on the windshield of his car–but only after talking to him in person at about 6 pm and still getting blown off on the “so can we see each other tonight?” question.
That was the night he broke up with me, thank goodness. It was amicable and it hurt both of us equally, but it was the only solution. For as much as I loved him, I didn’t like who I was turning into, and he wasn’t going to be anyone other than who he was. I still sometimes wish it could have worked out for us, because of how good the good times were. But I can honestly say that whenever we occasionally touch base, I’m still quite sure I’m happier having been without him for the past twelve years than I ever could have been with him. And I’ve been single those twelve years–like I said, I’m not normally a clingy and insecure type who has to have a man in her life. But in the dynamics of that particular relationship, I was, and it was an indication of just how badly out of balance the whole relationship was.
As for him, he’s married. I presume happily, because if this incompatability had existed with his wife before they married, I hope he would have ended things with her as well for both their sakes. And certainly there are plenty of marriages where people are apart a lot that work just fine. So no, I don’t think things have to be so difficult as I experienced with him. We just had different priorities and there was no compromise that wouldn’t leave one of us miserable. That’s how it goes sometimes.
Anyway, the general situation the OP is in kind of reminds me of that relationship. Except my relationship ended before the bad times got nasty. One thing I’m sure of in my own relationships: by the time I start saying things like “but the good times are so good,” it’s time to bail, because staying would be really dang dysfunctional. Ups and downs are one thing. A roller coaster is another.