Need advice/reassurance please.

Anonymous
Sorry in advance for the long post, but I'd really appreciate your feedback. So I moved in with my boyfriend and his dad last summer because I was dealing with depression. Well, his dad has been terrible since we moved from an apartment into a house and has been wrecking my things and acting very childish. I've wanted to move out for some time, but the boyfriend kept convincing me to stay by negotiating with his dad to sleep in his room instead of the couch and not use my silverware(which he was wrecking). But I've had it. His dad is just a terrible person and it's causing me so much anxiety. I start college semester next week and am calling apartments tomorrow. How do I manage to live without my boyfriend for 6 months until he gets out of the lease with his dad? I'm going to miss doing everything with him and my dog won't get to see him as much. Help? I know I'm making the right choice for my mental health, but it's so hard. And I'm scared that things will change between us.