OK,so update from this weekend...

H came home an hour late from he said he would on Saturday. I was going to leave without him, but D3 cried she wanted us all to go together, so I waited.
The drive up there was awkward, and I noticed him texting OW every chance he got, so I told him when he texts in front of/around me or kids, I feel its very disrespectful to us. I texted him that when he went to the restroom because kids were around. After that, he didn't make it so obvious.

As the time went on, H seemed a little relaxed. He suggested to dress up for dinner and we all went together. After kids went to sleep, we were having some drinks and he was making advances. I told him I can not be his wife until he ends it. He hasn't tried since then. He apologized saying he doesn't know why he did it.

At the wedding, H was still a little distant, but I tried to have a good time with kids and other family members. I danced and kids ran around, overall it was fun.
Every time H introduced me as his wife to his family and friends I met for the first time, my heart sank though. Nobody knows but us what's going on. No one had a clue this happy little family is breaking.

Towards the end of the night, he got antsy and he wanted to leave. After he sat with me with drinks for a while, he said he is going to "take a walk" and left. to talk to OW. I felt just so devastated.

The following morning, H didn't even want to come to breakfast with me and kids. He just wanted to go home. Even though he was not mean or anything, he was very distant.
As soon as we got home, he said he will take off and left. I just felt like doing nothing, I didn't know how I could carry on like this.
Just an hour later, H texted me. He apologized he ran away. He didn't realize how rude of him to ruin our "family day" until now. H also said he has no PA with OW (they kissed though) He has stayed at her place but only on her couch. He mostly spends the night in his car. I kind of believe this because they text each other all through the night and I don't think they would do that if they were lying next to each other...

I feel more depressed than before the trip. He was texting OW all through the trip (not just in front of us) I know he still cares about me and kids, but so much as about OW I guess.

My GAL update next...