Most Helpful Girl
I'd be embarrassed that I made a fool of myself, but some honest conversation could make me feel ok to try again.
Most Helpful Guy
Yes, absolutely. In your case, you turned her down without valid explanation. I would automatically assume you don't like me, or I am not attractive or sexy enough. Insulted, feel stupid and embarrassed. Yes, I would totally avoid you to avoid the awkwardness and feeling bad. I know being sick, or having cramps or whatever is also embarrassing at the time, but it happens. Totally understandable and no one gets their feelings hurt. The more time you let go without telling her why will lead to her never believing you and she will think you are just making that up to make her feel better.