I moved on after 2 years but..

I'm writing this mostly to vent, but I've been wondering about something for a long time.

Why does it sometimes seem like the harder you fight for someone you love, the more likely the relationship is to end?

At the time, I genuinely believed our relationship was healthy. Looking back, though, I wonder if she simply didn't love me as deeply as I loved her—or maybe she just wasn't emotionally mature enough. I honestly don't know.

I gave that relationship everything I had. When she moved abroad for work, I spent around 14 hours a day with her on calls so she wouldn't feel homesick. I put a lot of effort into changing parts of myself that she didn't like, even when they were completely normal behaviors. She was very sensitive, so I constantly watched my words, and whenever something upset her, it would often take a long time for her to feel okay again. I accepted all of that because I believed she was growing, and I thought we could work through anything together.

One pattern kept repeating, though. Whenever we had relatively small arguments, she would bring up breaking up. It happened around three or four times during our two-year relationship. After we finally separated, I spent almost two more years trying to make things work from my side. At one point, I even traveled to the country where she was living just to talk to her, but she still rejected me.

The breakup itself wasn't ugly. We didn't insult each other or end things with hatred. It was surprisingly respectful. But afterward, she blocked me on everything.

Then, about six months after my trip, something unexpected happened. She called me, and we talked for three days. Everything felt normal again, almost like we had a chance. Then, without any explanation, she disappeared and blocked me again.

I honestly don't understand her.

One thing that has always confused me is this: when I've been distant or less invested in past relationships, women seemed to chase me. But when I genuinely loved someone, showed up consistently, and gave everything I had, she was the one asking to end the relationship.

I know she's probably not the right person for me. Deep down, I understand that. Love can make us overlook things we normally wouldn't.

I'm not asking because I'm waiting for her anymore. If she came back today, I don't think I could accept her. After everything that happened, I feel like I lost too much of my dignity trying to save the relationship.

I'm just curious what other people think.

Do you think she'll ever unblock me? Do you think people like this eventually regret their decisions and come back, or is it more likely that she's simply moved on and the blocking is her way of keeping that chapter closed?