Boys boys boys

So right now I’m stuck. I like this boy for who he is but he is a musician and when it comes to anything to do with music he acts like a twat and is very stuck up about things, gets drunk and then is holding other girls. He ended up coming back to my flat and staying over cause he wanted a cuddle and so did I but he took his ex with him. He ended up spooning me but is he just trying to get back at his ex who walked out. What should I do. I’m soon going away to collage and want things to be okay but my feelings are too strong for him and have been for a while. Help 😩