It was a she said, she said thing, and when we got back together we set some ground rules about communication to make sure we wouldn’t find ourselves in a situation like that again lol. It was stupid really. We both think so. But we’ve been a hundred percent better since.
I would not move someone into my home if I had been with them less than (or about?) one year and had split up during that time too. Even if you resolved it and have learned from it, it showed that you didn't have good enough communication to deal with it without a split last time. I wouldn't trust that communication was better now unless that had been tested. It's one thing if you move in together somewhere new, but this sounds like she'd move in with you? That makes it really hard to split if you want to - because you're now responsible for them losing their home too.
I think - why the rush? You're together all the time anyway. I would wait until you had a longer relationship.