p.s. Simple things to do: don't pursue, don't beg, argue or reason with him -- it's only going to drive him further away. Be kind but firm when you talk to him, but on the brief side. Don't spy, unless you want to stay up all night for days on end and lose a few pounds.
Me: 50, MLC/WW 45 Young kids Nov 2015: BD1 Apr 2016: BD2 Jan 2017: W filed Feb 2017: D final