If two people are meant to be together will they no matter what?

Sara
I question if my ex and I were meant to be together but an abortion from years ago has prevented that. I don't even know if this makes sense. But in my head I think if we kept the baby we were meant to be but since we didn't we aren't now.
Or if two people are meant to be does that mean no matter what happens in life (good or bad) they will be together?
Sorry if this doesn't make sense.