That's pretty much what I wanted to say

SS is right.
You're putting too much effort into something that's been damaged already.
You can't chase after something like that. You shouldn't have to.

Also, it kind of seems like you thought you ran the show, until another girl came into the picture, and you realized how easy it was for him to move on; and that made you insecure and ignited the fight in you. It shouldn't be jealousy that makes you think you want something.

Sometimes it is better to want than to have.