I think that I made a mistake and mised a sign that she was giving me? Help me?

I was at school and these two girls signed in and they wanted to talk to people at my school and this is an all guys school.

she said that she liked my eyes and I stupidly said that I know

I should have said that I liked hers too but I didn't

should i do something or should I forget it

I have sea blue eyes and a lot of people say that they are nice