Girl i was having a crush on rejected me after i told her was into her. I then deleted her number from my contact list and then my friend called me an “incel” for that.

Met this cute girl on math class, she was into history, geography and politics just like me and we chatted for a couple hours. Went for a date with her, thought she was interesting and pretty, then days later i told her about my feelings for her, she said i was dear to hear and a very nice guy, but just wasn’t on the same page as me and didn’t want a romance with anyone. After she said that to me i deleted her number from my contact list, i felt a little sad and told it to my best friend. He then said to me that first i should be friends with her and then think of her as potential girlfriend. I told him i had no interest in being her friend and the he said i was a creep and an incel for her deleting her number and that i was only trying to use her to fulfill my sexual needs. Thoughts?