Need EX advice

I dated my ex a while ago, 2 years ago, we dated for 2.5 years & he was wonderful!! First ever proper boyfriend. We’re friends atm, I have a baby girl to someone else, we broke up nearly a year ago. & after him my ex of two years (the first one) calls/ chats me whenever he’s drunk ONLY when he’s drunk and says such lovely stuff but ignores me after/- he has a girlfriend. We both know we like eachother, everyone knows.