Have a good trip! It will really help to be in different surroundings. It will give you a mental break.
Re: H's recent trip............I was single (unmarried, but had long-term relationships) for most of my adult life until I met XH (just never met the right person until H/XH). One of the things I learned from those relationships is that taking a vacation with someone was a good test for the strength of a relationship. Traveling can be very stressful and tells you a lot about how someone reacts under stress. It's quite possible that your H got to see a side of OW he hasn't seen before.....and that may not be a good thing for their relationship. There's nothing like jet lag and trying to sleep on an airplane to bring out someone's true nature.
Have a great trip! Refresh and replenish yourself.
