I agree with the rest Jazzy... it's way too soon to be assuming the worst.
There are too many possible reasons for the lack of response.

I remember this... in my youth (high school), I went to my locker and several lockers down was a small group of girls. And occasionally they would glance at me and they were all giggling. And it upset me.
For some reason it came up in conversation with my dad and he said, there are a million different reasons why those girls were laughing... one of which is that they might have been laughing at you, the other 999,999 reasons you just don't know.