Did he take It too far or am i overeacting?

So, I'm 19, bi and went to my first pride, well, it was small since i live in a medium sized city but there were a lot of people, anyways This older dude aproach me, he starts to talk to me and he is pretty chill, he tells me he is 48, I'm like a bit taken aback but he was not bad looking and nice, he tells me to kiss him, i tell him I'm shy, i Don't want to, but he keeps insisting, i tell him i will give him my insta and i hoped that would satisfy him, he insists again and i settle in a peck, after the peck he gives asking me for more and i told him i was drunk and i was shy and bla bla, after like five no's and three pecks later he backs off, i don't think what he did was right but i feel guilty for feeling bad cause i did give him three pecks on the lips and my Instagram, i think in his perspective i wanted him as much as he wanted me, so why do i feel so bad? I also told him i had to go cause my friends were waiting for me and he kept saying "One more, just one kiss."