<human>: We've been together for three years. This is very important: he gave me permission to have this lesbian affair **right after** a blow job. Like, seconds after. He knows that it's a fantasy of mine, but I think that it would end up harboring resentment (as honestly, I wouldn't be comfortable with him having sex with another man). I tried to tell him this, but he said that as long as I didn't end up in a relationship with a woman, he'd be cool with a few one night flings.

So my line of thinking is this: 1) I'm not sure if, when it happened for real, he would be so cool with it. Especially since he told this to me moments after sexy times. 2) This is definitely cheating in my book. I'm not a fan of that at all, and it worries me a bit that he doesn't seem to mind if I cheat. I'm not going to say that I think it speaks to the value of his morals, but....actually, I guess I am saying that. Even though it's a bitchy thing to say based off this one incident. I just believe so very much in fidelity. It's incredibly important to me. And it's a little heartbreaking to know that he doesn't share that value. 3) If I did do it and he DID end up being pissed about it, it wouldn't be my fault. He's giving me his blessing, and if he goes back on it later, that's his problem. But I'd still feel like I was taking advantage of him because he wasn't thinking straight when he said it.

Can you summarize the given text in a few sentences?
<bot>: Right after I gave my boyfriend a blow job, he told me he doesn't mind if I have a few lesbian flings. Do I really have the green light here, or will this ruin my perfect relationship?