It might not be that the hubby has committed adultery.
Just wanting to have fun.
Thing is, if there is no proof of adultery, except for exchanges
of smses, it wont be easy to get a divorce easily. The
standard timeframe to acquire a divorce still stands.
TS hubby may have been just wanting to have some fun, and TS may
be hurt, because he is having fun, maybe hitting TS's ego a bit
that he isnt having fun with her instead. I know it hurts,
because as a wife, you suddenly feels unwanted, not sexy or just
plain dowdy.
Important thing is to lay down the rules. Both spouse has
to be reminded of the line they shouldnt cross. And
playing around has some consequences, which both party has to
accept. Let him know that if he want to eat outside, he need
to be responsible to wipe his mouth and not bring trouble home.
There is some logic to the worse suggestion here. Do some
exercise, keep yourself healthy and beautiful and you wont need to
borther about him straying cos he wont be the last man you can
have.