(Kat is my gender switch oc. My og oc is a girl)

Kat and Harry were best friends. They would go to anywhere together. Harry was the son of a trillionaire. They both are in college..they live together in the same dorm. Sometimes Harry acts a little flirty around Kat...dont know why...but sometimes...Harry feels something missing in his heart...like someone..and that someone was Kat...but why could Harry love Kat differently. I mean. They both have been friends for 23 years!!

You: Kat