Cheating husband

So last night i found out my husband is cheating on me.... he was at work and kept getting facebook message notifications (Hes logged into messenger on my phone for when his phone dies). I went on his messenger thinking kt was his family trying to

get a hold of him so i was going to let them know he was at work. This is what i found.....

After bring it up to him and fighting with him about how hes lying, he finally admits it and then he tells me he sent them nudes.... i dont know what to do..... he wants to work it out and go to marrage counseling but idk.... he did delete his facebook completely.