He's doing his best to be central in everything. It's all about him - you are just one of the claques (an obscure word I know but applicable).
One thing I did learn second hand about affairs is that it's often not about the sex. It's about the thrill of getting away with it and the power they get over others who they feel want them.
and, i'm convinced, entitlement
M 20+ T25+ S ~15.5 (BD) BD 4/6/15 D 12/23/16
"Someone I loved once gave me A box full of darkness. It took me years to understand, That this too, was a gift." ~ Mary Oliver