Please knock some sense into me...

My (ex) bf/baby daddy of 3 1/3 years basically broke up with me, but keeps saying we’ll say what happens. (Meaning by the time the lease ends in June) He wants me to continue to live here, but he’s sleeping in the living room. And only comes in the room if he’s wanting sex, then he leaves. I even gave in to anal for the first time because I thought it would make him happy and he’d change his mind because I want us to be a family. His brother and cousin have been staying here for the past 5 weeks and only 4 of those nights they weren’t here. When they come over, it’s always for a long period of time. We can’t be intimate and it’s like having multiple children. (They’re 16 btw) When they’re here my (ex) bf tries to act their age and is extremely immature. Please knock some sense into me. I know it’s not far to me for him to string me along not knowing if he evens wants to be together while he explores the “single” life and still has me to come home to. I feel like he says we’ll see what happens and for me to keep living here because he doesn’t want me to move on since he goes out and does whatever he wants and knows I’m home watching our son.