An ex boyfriend is a male who used to have a romantic relationship with you but who is no longer a romantic interest. When a couple breaks up then they become exes, and they are no longer together in a romantic way. If the break up was bitter then an ex boyfriend may try to get even or win you back, even when they know that this is not going to happen.
I know when that hotline bling That can only mean one thing.
Now you say you want it back Now that it's just too late Well could have been easy.
I wish I didn't fall so deep in love with you and now there ain't no way we can be friends.