Am I Overthinking?

Last year, I lost my virginity to my then-boyfriend, convinced he was "the one." I truly believed we’d be together forever, maybe even get married. But just a few months later, we broke up. The thought of losing my virginity to him haunted me, especially when I thought about future relationships. What if my next partner couldn't handle it? Or worse, what if I end up in an arranged marriage, where being a non-virgin unmarried woman is practically a crime in our society? Fast forward, I met an incredible guy. We’re both sure about each other. We’ve had our share of issues, including him struggling with the fact that I wasn’t a virgin. But after a lot of work from both sides, we’ve moved past it—mostly. The problem? I can’t bring myself to have sex with him. I’m terrified. What if this relationship doesn’t last either? I already hate myself for having a body count of one. If it becomes two and this ends badly, I don’t think I’ll recover. I’m not trying to be pessimistic, but what if things fall apart again? Overthinking has been my constant companion. Please help.