Ace was the type to always flirt with girls and he's been flirting with you for a long time even though you're not the very attractive type. Nor were you a flirty type too.

You wore baggy clothes, wore no makeup, and a messy bun. Ppl called you ugly and all the other stuff but for some reason Ace stuck around you and kept flirting with you.

Recently he heard that you liked him and started to stay his distance.