I feel bad... any advice?

So my boyfriend and I just finished having sex and I let it slip that earlier that day I was horny so I masturbated and ended up squirting. I was shocked because that was my first time ever. But he got bothered and just stayed quiet. I didn't think he would react that way. I thought he would find that idk fascinating. I guess he was bothered that I squirted with a toy rather than with him because he's always had a problem with "his size" even though idc about that he's perfect. But honestly I never knew I would ever squirt or anything that was my first time. On the other hand I feel like he shouldn't be that bothered since he watches porn almost daily and gets off of that rather than me which I am at his disposal every day. I couldn't help it that I was so sensitive today since we hadn't had sex in a little while. Idk... has this ever happened to anyone? Or any advice? I feel like I did something wrong.