Be very careful. You have suffered a lot of stress. It could be very easy to try to divert your attention in this way. If he wanted to be with you, he could have suggested a transfer. IMHO the very fact that he hasn't brought it up or talked to you about it, indicates he's only looking for a friends/work mates with benefits relationship.
Why do you feel attracted to this person? Are they like your previous partners? What have your previous relationships been like?
All the best,