I need advice

Sk

I’m with my boyfriend around 3 weeks now and 99% of the time if not everytime he brings up his ex . It’s always him saying how much he doesn’t like her and how she made his life hell etc etc , but I still feel like because he brings her up all the time he still has feelings for her . I don’t know what to do can someone please give me advice , it breaks me every time he mentions her name .