I need some advice guys!

Okay, so here’s the tea. I live with my boyfriend, his brother, and his mother. I’ve been dating/living with my boyfriend for a couple months but when I met his brother I felt conflicted. His brother and I have so much more in common with each other. He actually tries to engage in conversations with me while my boyfriend just sits on his phone or plays video games 24/7. His brother will involve me in the stuff he does around the house. Im not trying to be shallow but he is also very attractive compared to my boyfriend. I think I’ve started to fall for my boyfriends brother and I need advice!