<human>: Condense the text into a few key points

So about a month ago we broke up. We've been friends for years and both decided a four month relationship wasn't worth ruining that. A week or so after that, shit hit the fan at my old home and he offered to let me stay with him and his housemates for a while, to which I agreed. Since I moved in we've spent a lot of time together, including occasional platonic cuddling, and a couple nights ago he asked if after he moved away from his other housemates I wanted to move in with him, to which I said yes, but things might change. 

Since then I've done a lot of thinking, and I'm wondering if that might not be the best idea. I love him like I love my best friend, but with the physical aspect of cuddling, and I'm worried that might ruin future relationship prospects for me. Similarly, if he finds someone else, it could be really painful for me to cope with. The weird thing is that I feel like I'd feel that way even if we hadn't dated. 

I guess you could say I'd be content with the way things are now, but it's a really unstable place to be, and I'm not sure if the risks are worth the rewards. Sure I'd have a reliable housemate I'd feel very comfortable around (I'm transitioning from male to female, and he's been extremely supportive, especially when I have bouts of depression.), but at the same time I'd have a front row seat to witness him finding someone else he loves and all the things associated with that. 

I want to make sure I've thought everything through before I mention this to him, because I don't want him to retract his offer if I do eventually decide I want to live with him. What are some questions I should ask myself as I decide whether or not to take him up on this offer, and what are some things I need to consider that I might not have thought of?
<bot>: Ex wants me to move in with him, not sure if that's a good idea, looking for things to think about before I commit to an answer.