After some kind advice please!

I’m a single mum of Teens, I have been divorced from a DV marriage for 11 years. I have had a couple of shorter relationships since then which didn’t work out and weren’t all that healthy, and more recently I have been in a relationship for 2.5 years with a lovely man, he is kind and I enjoy his company. But when it comes to the topic of living together I can feel myself panicking, looking for and making excuses. Over the years I have become very independent. I financially support myself and I now like my own space, I am quite happy seeing my partner just 2 or 3 times a week because dealing with teens is hard!
I can see how it makes financial sense, but that’s not everything, peace is everything. I can see how he would feel hurt and like I’m pushing him away but I’m exhausted and still a bit guarded.

Please be kind with your responses.