Something Odd

I've never put much thought to it really. It's just been some simple part of me that just... was. But now I'm realizing that my pansexuality might indeed have some effects on other people. In fact, I know that it does, namely on Brent. Today, while we were talking on the phone he brought up Kendra, and what had gone on between us. I like to tell myself now that the only reason I fancied her was because she was the only other person I knew at the time who could potentially have a same-sex relationship with me, so I got excited. Nothing much happened anyway, thankfully, so I have little to regret. But for some reason, this makes Brent so very uncomfortable. He's not really homophobic, he has no qualms with LGBT-types doing what they do. But for some reason, my sexuality has his jimmies quite rustled. I never imagined that it would be such a problem to like girls and the general "not a genetic male" population. It's kind of alarming and just a little bit offending. I'm not quite sure what to make of it, honestly. He wants to talk on it more, but I don't think we'll have enough time just at school, and he's more or less grounded for the next week. I'd really like him to understand my feelings on this, and I'd like for him to be okay with it, or else I'm not sure what's going to happen.
I admit I've been looking at girls with a bit more longing than normal lately, I wonder if he's noticed, and feels threatened. Or even if he's not noticed, and the addition of a new past flame has his insecurities on the rise (again.)
It's just so very strange. I'm not sure what to think.