Insecure about my first handjob

Me (16F back then) and my ex bf (also 16M back then) were quiet physical with each other when we dated but we never had sex or anything. Max we made out while we felt each other in the upper body area.

During the end of our relationship however we went on a movie date once and ended up making out. It escalated from there and I ended up giving him a handjob.

The thing is I thought guys only last a few minutes but it went on for like an 1hr. We were kissing while it happened and I was sliding my hand up and down simultaneously on his penis as much as I could. He did have some reaction to it but because I didnt make him finish for anything (if that's what happens?) I've always felt insecure about what happened because he was my first bf.

He was already hard from all the kissing though and he was much more horny than ever was. He even told me how he enjoyed that date the day after and couldn't stop thinking about it b4 we brokeup. Also because it was a public place It was my hands in his pants so I didnt actually see his penis or anything. Did I do something wrong?