My bff appears in my dreams

So I have this best friend who I can talk with about bl and porn . He is pure and doesn't really watch any lewd stuff , but he keeps up with me even tho he is not into it . The thing is , that recently I keep having wet dreams about him , it started 4 months ago but recently it's happening every night. Idon't know if I'm gay and I hope I'm not cuz I don't wanna love me best friend who trusts me . If he finds out he will hate me cuz I'm dirty . Plz how could I get him out of my head and is it because of the bl or do I really like him ?