Even if someone does tick all the boxes, it doesn’t mean an attraction will develop or that they’re right for us, and you know what? That’s completely ok. You sound like a kind person, who doesn’t want to hurt another’s feelings, but I would be honest with myself here and at least ask, would I feel any more attracted if he weren’t as heavy? It’s hard to walk away if we can’t see a discernible reason to, I know, but if the attraction really isn’t there, it’s better to let go in the long run.
It’s also understandable that you don’t want to rush into anything after being hurt so often in previous relationships.
In any case, I hope you can make a decision that feels right for you. Good luck!