He "gave" you a 3 month separation? Or did he TAKE a 3 month hiatus?
If it were me, I would make sure all the locks were changed before he arrived back in town. I had this done - after hours- 4 doors and the after hours call cost me about $200. Well worth it.
Not to say don't consider your options here, but truly, don't let him consider you to be an option - you need to see that he regards you as a priority.
Take it slow if you are even thinking about trying.
You are the prize here. Treat yourself as such.BW - Reconciling
edited for typos (I always have to!)