<human>: Can you summarize the given text in a few sentences?

This is understandably a really, really odd situation.  Throwaway cause boyfriend's on reddit. But i do check this account often. Basically me and my boyfriend have been together for 2.5 years, and we were each other's first everything. We are quite sexually mature, we partake in a lot of light BDSM type stuff, choking, rope and tape, humiliation... You know, regular teenager stuff. I guess there comes a point where he got bored or something.

Anyway. Flashback to 6 months ago. I realize I'm bisexual. I ask for permission to explore this further with this girl I knew who'd be up for it. He agrees and says he'd be happy to let me explore my sexuality with girls.  Awesome! Lasts for like a month, cut short because of the other girl. Thats long past now, and a couple weeks ago he brought up the point that he's very curious about being with other people. I totally understood, and thought since I was allowed at one point, it only makes sense that he should be given the same opportunity... I wasn't thrilled about it at first but I came to my senses. 

So now he's been messing around with a female friend of ours, everything seems fine, it's going well actually. The problem is I'm really curious about being with other guys... and due to my boyfriends rules, me being with another guy is ultimately forbidden. I can't even bring it up without him getting upset. I'm allowed to be with other girls, but no guys. Final. But what I want is to try things out with another guy!

 Is he being stubborn or am I being unreasonable? I don't even know anymore, our sexual relationship is so out there, I have no idea what's considered normal or not anymore.
<bot>: my boyfriend is allowed to be with other girls, and so am I. I'm bisexual. But under no means am I allowed to explore with other guys. Is this unreasonable?