I sent a joke to the girl I like. She said it wasn't funny. I don't know whether she hates me or wants me to keep trying.

I wonder what your sister paper is like? First of all, your joke has a sensitive object: bananas (needless to say, everyone knows). If your sister knows the meaning of this matter, you are in danger. Second, if you are not in love, "it's too hot, I'm going to take off my clothes." Plus you send this joke to her alone, you are even more dangerous.