Am i being too sensitive?

I had this friend at school when I was first starting out, they were a junior so I thought it was cool that they wanted to talk to me. They said I was sweet and that they wanted to be friends with me, they gave me their Instagram and discord and we talked some on there.

We had a lot in common but when we'd go to lunch they'd kinda change the subject and talk negatively about trans people or politics or smth. I didn't really know how to respond so I kinda didn't, it made me feel a little uncomfortable because why do you care so much if it doesn'taffect you.

I could be misinterpreting things but they'd make these jokes that made me uncomfortable. Like I usually wear jeans and a sweater or shirt to school and sometimes when you sit in jeans they fold up ya know? The first time they asked me if I was "excited" and I said "wdym" then they pointed at the folded up part and said "your jeenis".

I didn't really know how to respond, I didn't wanna seem rude so I just said "oh". They did that usually whenever I sat down and they could see my legs, I'm just not too sure if I'm over thinking humor here though. They also asked if I was "special" once and when I asked what they meant they pretended to not have said that.

Maybe I just wasn't mature enough or smth to understand