I've been playing with this couple for a while now, and I think it's time to walk away because of potential attachment feelings the GF is probably developing. Please tell me if there's a viewpoint I'm missing.

I've had a series of MFM threesomes with this couple, and I feel like she doesn't respect her man.

Her and I were waiting for her BF to arrive, and she wanted to make our. I knew this would've broken a boundary, since her BF wanted to be present for all play-related activities. I asked her if their boundary had changed, and her response was "I don't care". I told her to call and ask if it was okay, which she did, and as I thought, he asked to wait until he showed up. So that's what we did.

Another time we were playing, I finished in her and her BF started to get on top of her and she told him no. He looked seriously hurt and backed off. While I affirm that no one is ever obligated to have sex with someone else, and that anyone can revoke/deny sexual activity for any reason or no reason at all, it made me feel really fucking weird since he and his GF would always go at it once I was done, and made me feel like I having inappropriate influence in their relationship.

I've spoken with the BF in private to make sure he's really okay with all this, and he just says "it's fine dude."

So I feel like this isn't the healthiest thing for them and myself, and I feel guilty because I've tried to "think" myself out of seeing these red flags. She's really hot and on the pill, and I've been fascinated by the lifestyle for the longest time and was thrilled when I finally got to take part.

I refuse to be a stressor in someone else's relationship. I've had vanilla relationships in the past where my partner used other men to manipulate me. I hated it, and I refuse to be someone else's chess piece in a game against their partner. I'm not a mind reader, but I feel that's the direction this heading.

Please ask me anything or offer up different perspectives/analysis, as you see fit.