If I told you, you may never believe it. She was with me in college but different department. I liked how she looked but we never talked. I graduated, years later moved to the US, was chatting online with random people, and there she was. Told her I knew her, we met later in the year and fell in love instantly. We married and it was the best decision in my life. She later admitted that she knew me in college and wished I had made a move back then :)
Can only happen between two well balanced people.. nothing is enough to make marriage happy with an unhinged one. On the other hand if both are balanced even separation can be done with respect and zero drama.
It actually takes work to make any relationship thrive. Figure out how to communicate and work as a team and as someone else pointed out, give more than you get. Support each other unconditionally. Good luck