Am I being irrational or protecting myself?

My BF & I have been dating for a while. We both own homes & have a combined total of 3 little girls. We both have roommates. His house is bigger so we're combining to his house. However, he has a roommate that he spends WAY too much time with and will continue to live there for another 2 months after I move in. My BF is NOT budging on having his roommate move out in the next 6 weeks (the target goal for me to move in & rent out my house). He wants me to empty my house, rent it out, kick out my roommate, and then deal with his for 2 months while our kids share 1 bedroom and my stuff is in the attic. But wants my roommate to move out in 30 days. I do not feel important & now this major step in our relationship will include is roommate, as did engagement ring shopping/valentine's dinner/christmas night/new years eve/thanksgiving ... there is TOO much roommate. I said I would end the relationship if we didn't have the scenario to combine houses holds and make this transition without other people hoovering in the same house. His roommate was supposed to already have moved out. Yet here we are - at a make it or break it stage. He is FIRM on not making the roommate move out before I move in and I do not believe the roommate will ever move out so I'm hesitant to give up my safety, security, and stability on a whim.

To give up the man I love and the dreams we've shared and hurt our children or resent him for accommodating his roommate instead of me and the children. (Even the oldest of the girls wants him out because he's in the room she'll be living in ... she's 9).

How do I get my boyfriend to ditch the leach and make his family his priority?

tell him how you feel and talk to the roommate,you could also help roommate look for another flat