This is a great time for you to ask him to send the OM a no-contact letter, and to agree to full transparency with you. Do you think that he'd be willing to do that?
The other thing that I would strongly consider is having you two DATE each other -- exclusively -- while he does NOT move back in with you (staying at his mom's would be great). For a period of time, say 3-6 months, to see how things go. Do NOT make the oh-so-common DB mistake of letting back into your heart -- and your home -- too easily!!!
Starsky
I absolutely agree with Starsky. Take it really slowly. I would look at this as I would any other NEW relationship. If you met a new guy tomorrow, you wouldn't jump into a M, would you? No way... Make sure that this is what YOU want... and if so, make HIM EARN it.
M 43 X 38 T 13 W moves out of home 11/2010 Roller coaster from hell 2/2011-5/2012 I request divorce 5/2012 W moves home 6/2012 Good time 7/2012 - 1/2015 I leave 3/2016 process of divorce