So to preface this, I'm pretty new to my school, I've been here about a year and a half. During this time, I have not been well liked and it never really went as far as it has now with the rumors and gossip, just normal high school drama. My boyfriend is a good guy, and is well liked, at least more than me. He is my first boyfriend too and we've been together about a month officially, but we've known eachother since I came to the school.

We were on a school bus back from a school club and I get tired pretty easily. We both take our coats off, use them as blankets, and he puts his arm around me. Later I take the coats put them on his lap and rest my head on his lap with the coats on top. The bus ride ends and we go our separate ways. The the next day and days after, his friends, some of which weren't even in our grade, teased him about that night, but neither of us really knew why, until yesterday. 

I was texting with a friend when she tells me that she defended me after something came up about that bus ride. Apparently the some of the kids who don't know us very well thought I was blowing him. She even told me there was a video that was circling around with the rumor. I don't know how someone got to that conclusion, but that has been going around for a week. 

He and I hung out last night and I told him about it. He told me he knew about a rumor, but not the extent that the rumor had been. I was clearly very upset and he put his arm around me to comfort me. This isn't the first time I've had to deal with rumors in my school. I told him how sorry I was because I knew that this was more focused on me than him, to which he agreed. I still do feel bad because I got him involved, and I still feel like it's my fault. All he said was not to worry about it since there's nothing we can do, but let it pass. After I was more composed, he seems annoyed and I asked him why. He said that rumors in general don't really bother him, but this one did because it questioned his integrity. He didn't seem bothered at all at the fact that I was the other one involved in the rumor. He just told me to ignore it and when I did, he started mentioning his integrity and how much that bothered him. I've never seen him this upset at something before because he isn't one that cares about being liked or about rumors. 

I know his integrity matters to him a lot, but I can't help but feel upset because he didn't defend me at all. I feel guilty about feeling upset at him. Maybe I'm reading into things too much since this is my first relationship, but I would have liked to be defended by my boyfriend, instead of just my friends. 

Am I the asshole for being for being upset?