:smack: Really? You started off as friendly acquaintances discussing platonic chitchat topics, and then became friends and then lovers, and you honestly have no clue how continuing to have platonic chit chat discussions might lead to you two having sex in the future. Really? You’re not that dumb.
I guess it’s entirely possible you’re that deluded, though. People can blind themselves to all sorts of obvious things that they don’t want to believe. My own husband is a very smart man, but he was honestly and utterly flabbergasted that I seriously considered the possibility he might be fucking one of his female friends. I mean, sure, they spent a lot of time having secret conversations about her unhappy marriage (and apparently her messy affair, which he hid from me), and she felt free to just walk into our house like she lived here, and they made all sorts of plans to do things that I only found out about when I happened to overhear one of them updating the other, and she stopped publicly complaining about the lack of sex in her marriage about the same time our sex life took a serious nose dive, and he couldn’t bear for there to be any mention of any of her flaws or foibles at the same time I apparently had nothing but flaws and foibles. But he honestly didn’t see how any of those obvious, textbook signs of an affair might raise any eyebrows, at least not while he was in the middle of it. He’s gained some perspective with some time and distance and can admit that a lot of that stuff was kind of fucked up and inappropriate, but at the time he honestly could not see any possible connection between the situation and my concerns.
Fortunately, you have a touch more perspective than that. You’re at least standing there staring around thinking, “Damn, this is a lot of trees. And there’s a lot more over there. This is almost like a forest,” rather than “Forest? What forest? What kind of idiot thinks there could be a forest in the middle of all these damn trees?” But you’re never really going to see the size and scope of the forest until you get some distance between it and you. As fucked-up as you think this situation is, it’s a lot more fucked up than that. When he’s fully out of your life and mind and heart, you’ll look back at this and be all :eek::smack::(.
Ditch him. Ditch him now. Yeah, he’s going through a hard time right now, and things may get harder down the road if they do divorce. But that’s not your problem. He’s a big boy and he has other people to lean on. He will manage just fine without you there to discuss sports and running and work with him. There is nothing good for anyone that will ever come out of you continuing to have contact with this guy, unless you count the ego boost he gets from knowing you’re still on the hook.
Literally nothing good for anybody. Nothing good for you–you won’t truly be available to get into a decent relationship if you’re still hung up on this guy, and your sister finding out about this is likely to cause serious friction between you. Nothing good for him–he’s not going to shit or get off the pot re: his marriage if he’s got you waiting in the wings to soothe and flatter and fuck him the second he opens the “oh poor me” door again. Nothing good for his wife–she’ll have a husband who shit or get off the pot and when it eventually comes out who his piece on the side is, it’s liable to implode her friendship with your sister. Nothing good for his kids–they’ll live in the Mommy-and-Daddy-ought-to-get-divorced-but-won’t limbo for that much longer. Nothing good for your sister–the longer you drag this out with this guy, the more likely it becomes that your role in all this will come out, and she’ll have to choose between a friend close enough that they discuss things like a pedophile brother, and her own sister.
If you won’t cut ties with him for your own sake, do it for everyone else who’s going to get hit by the shrapnel when this mess explodes.