Sorry about the text wall. TLDR at the bottom.

So my wife and I have a friend group that’s really close. There are 5 couples and we spend a lot of time together, go on vacations together, celebrate holidays together, and we all raised our kids together as family. We have been close for almost 20 years.

Over the years I have fallen really hard for one of the moms in the group. She’s smart, funny, hard working, sexy, and just awesome. And my god she has a gorgeous smile.

She and I have close/special relationship. We always tell each other we are each other’s favorite. Anytime we have a get together she and I always end up together just she and I having deep convos. We even went out of town to a festival together with our kids and left our spouses home. I was hoping something would happen but it didn’t. Probably because I didn’t know what to do or how to make it happen.

In the last couple of years things have been not great with her and her husband. The girls all talk and my wife tells me all the things she tells her so I know their marriage isn’t great. Basically he’s only happy when she puts all her attention on him. He gets jealous of his kids when she focuses on them. The way they stay together is she just pushes her needs/wants to the side to keep him happy. I do want to say at this point he is not an asshole and he’s not bad to her at all, he’s just immature and selfish. He is also one of my closest a friends. (I know I’m the asshole).

Since I’ve had these feeling for her I’ve been pushing the bounds. I’m very touchy/feely with her when we are together. She always hugs me with her arms around my neck I wrap my arms around her waist and pull her close and we hug longer than is appropriate. Usually when the hug ends she keeps her arms around me and I put my hands on her waist and we chat like that for a min or two. Several weeks ago we were all together for a party and she and I had quite a bit to drink, we went sloppy but def buzzing hard. We took a group picture and she was next to me and I was rubbing her lower back and I left my hand on her ass. She didn’t stop me at all. Her husband noticed and commented and pulled my hand away and I put it right back. She thought it was funny as hell.

I’m not sure if she maybe has feelings for me. I seriously was surprised that she was so cool with me basically grabbing her ass in front of her husband.

I really want to try and kiss her or make a more overt move but I’m scared that there’s no going back once I do. If she’s down it’ll be great but it will mess up our group. If she’s not down it will mess up our group.

Any suggestions?

FYI I have never had a physical affair but I have had a very deep emotional affair many years ago. So it’s kind of new but kind of not new territory for me. Also I have absolutely 0 game.

TLDR: I really want to have an affair with my friend’s wife, I think she might be into it but I’m not sure. What should I do?