Hi Allison,
You’re in the right place. Sorry you need to be here, but we all have been through this exact same thing in one way or another. I found out after what I thought was a happy 30 + years of marriage. That was 3 years ago. This site is free and monitored by awesome volunteers, so we make due with it being a bit encumbered. Here’s the thing, sounds like you aren’t together anymore? If so, good for you. Then why are you still in contact with him? I truly didn’t start to heal until I went NO CONTACT. That meant blocking him on everything. You don’t need to see him over the holidays, who cares what he wants! If you have young kids, that arrangement is spelled out in a custody agreement. Stay the course. Keep posting, we are here to listen.