I am so confused, not sure what hand I am playing

[Snow White]

Well, I made it through the trip alive. It was a trial. I am not sure if we came through it slightly better. As mentioned H was very miserable leading up to the trip, couldn't sleep staring out the window. Friday night before we were to leave in the morning he said that he was so upset about work and everything (but that he didn't want to talk) and that the vacation would be horible because he couldn't sleep because he was so upset about everything. The drive down was quiet, over the 2 days I drove 17 of the 20 hours. My dad talked about random things, mostly annoying as I was stressed. But as we got closer I noticed H lightning up. Pointing out signs to D. When we got to the hotel (where we honeymooned) I broke apart from him at the circle and walked quick to beat him to the other side, he noticed what I was doing immediately and smiled. (we did this the other times we had been) I think he was relieved to be away from my parents and I am wondering if being locked up in the car with them for 20 hours was a lot of his misery leading into the week. We had a nice night Sunday and a mostly nice day Monday, there was a little tension, but 1000 times better than we had been doing the weeks before at home. They even took a family photo in the restaurant that he suggested we buy($30) Tuesday everything started going downhill. My daughter was hyper and overtired at the park so wanted to do nothing and go on nothing so we went back to the hotel where it poured rain all afternoon(tornado watch) we went to a nice dinner had a hot tub then my D started throwing up and was out of commision for the rest of the trip ending with me taking her to emergency last night after the 20 hour drive home. It was a stressful trip and we didn;t have a lot of fun but I think we are closer than when we left. Last night when we went to bed he initiated contact which is the first time in a few months and before he left for hockey today gave me a kiss, and actually replied when I said I love you. That being said if you read this far I have a question. He has promised that he will not contact the ow outside of work, I am certain that he was texting her during the vacation as he lived with his cell phone on his hip. Should I address this(i will know for sure by the oinine account in the next few days) or should I try to continue the positive vibes I am feeling?