Wow....that whole not having power thing [censored], especially when it is cold. As for POF guy, only you can decide what is best for you, but if you aren't interested, let him go. It is really not fair to either of you to keep something going. I get that he's had a run of bad luck and you don't want to pile on that (and I would SO totally feel the same way, which is further evidence to me that we are SO much alike), but you are doing both of you a disservice if you keep feigning interest just to keep from kicking him while he's down, so to speak. That is all just my opinion, of course, for whatever it is worth.
I kind of understand your situation about D10 and OWW from the other side of the equation, so to speak. I am the stepmom, not the mom and I didn't cheat with my XH. He had been divorced from his ex for sometime and had had other relationships before he and I got together, so it isn't like there is some cloud of suspicion over me or anything, but because mom flaked out and wasn't there for the girls when they were teens, I sometimes feel more protective of them and have a hard time watching them have a relationship with her now as adults. I know that sounds crazy, but it would make more sense with a lot of detail filled in. Anyway, I say all that to say that I know you have a hard time seeing D10 and OWW get close, but it really is a good thing. You don't have to like OWW (Lord knows I cannot stand my daugthers' mother), but you can be cordial, which by your own accounts, you seem to totally have a handle on. D10 will benefit in the long run. I can say that because my daughters are older than yours and as adults, I see how they have benefitted from the fact that from day 1 I have tried to be as cordial as possible to their mother and NOT take her place. I can't speak for OWW, but I always maintained that I wasn't trying to replace the girls' mom, but just give them another female to support them. The girls have always called me by my first name, never mom, but their own mother has recently suggested that they should be calling me mom because of all I have done for them. It's all about teamwork and putting the kids first, which you well know and seem to be doing. But, I know it is still tough, so hang in there.
I'm rambling and hogging your page, so with that, take care of yourself. Have a glass of wine or 10 and just chill. Everything will work out the way it is supposed to eventually.
Me 52, H53 Bomb drop 9/29/2014 Divorce from XH final 12/17/2014 Marriage #2 12/31/2019 5 adult (step)daughters (3 from XH's first marriage, 2 from current H's previous relationships) 6 grandkids