I believe you realize one of love’s dirty little secrets, Living with someone is a pain, no matter how great they are. If you don’t have to don’t, unless you are 100% happy about it because quiet boundaries are precious.
tell him missing him keeps a fire that you need to protect and having your own space keeps you solid.
There are assholes who treat the partners who move in with them like guests. But they are wrong to do so. If someone has moved in, it is now their home too, by virtue of it being the space they live in. And they should be treated as such.
I don’t know whether your boyfriend would be the bad kind of partner who acts like because you moved into “his” house, that his feelings matter more than yours or something. It seems like you want to get a new place with him in order to circumvent the possibility of him being the bad kind of partner. This is kind of like assuming your partner will cheat and taking steps to prevent it accordingly. The assumption is a bit of a problem.
Maybe his condo isn’t big enough for the 2 of you anyway and it makes more sense to get a new place. But if I had to move just to alleviate a partner’s assumptions that I’m going to be really shitty, it’s both offensive to me personally, and adding a huge cost/labor burden to cater to it. If the decision that he needs to move too is motivated only by insecurity, its perhaps not a reasonable ask.
So it boils down ultimately to how much you trust him. Perhaps he’s acted in ways that make you think he thinks of you as an extension of him. Or maybe you’re just done with living with partners, which is also fair. If he hopes to have a closer relationship with someone he can live with someday, you may not be compatible.