Infidelity Support Group
Any relationship in which one partner engages willfully in sexual relations with another outside of the partnership is considered to have experienced infidelity. This breach of trust is often traumatizing for the faithful partner as well as the relationship, and support is often needed to heal emotionally and to decide whether or not the relationship should continue after...
Your best bet is to check his phone. You can also put a voice recorder in his car. If he has an iphone you can use Find Friends. There are lots of ways.
Good luck!
You found texts and know that you check his texts.
He gets Facebook messenger.
Randomly ask him for his phone for you to check. If he refuses then you have simple confirmation that he is continuing to cheat.
Get tested for STDs and don't have sex with him.
Read " Welcome to the newly betrayed post"
So I'm sure if something is happening there will be a slip and it will come out. Anyway I hope so, I hate the not knowing for sure.