<human>: Can you condense the text into three sentences or less?

My husband of seven years is gay.  We have two kids and I was a stay at home mom.  We have an amicable separation and he's dating.  We're happy for each other to date. I met a wonderful man from okcupid, explained my situation, explained I can't do a real relationship right now, but told him I like him very much and want to go on dates/have sex, basically a friends with benefits. He said he'd be open with me-and that he hasn't had sex before. 

He also said meeting me is the best thing that's ever happened to him. I've warned him repeatedly that between my kids, impending divorce, part time job, and five years of school ahead, I can't be in a serious relationship. He said he's an adult who will pick himself up and dust himself off if things don't work out, that he wants to enjoy the time we have together, no matter how long it lasts.

Gay husband and my therapist have said it might be good for him to have sex with a kind person, and learn to be comfortable around girls.

Is it irresponsible to have sex with him, knowing he already likes me a lot, and that he's a virgin?  I guess I just worry it will add depth to a friendship that I need to stay simple.
<bot>: separated from gay husband, want sex/friendship with straight man, but he's a virgin and I'm worried it will end up hurting him.