very confusing guy

so i was seeing this guy for around 2 months. we sort of rushed things. we had sex ONE time then stopped talking. he kind of ghosted me.

then i saw him again because we are in the same friend group and now he wants to take me on a date??? i don’t understand. our relationship before wasn’t romantic at all. and why after all this time does he want to take me out on a date and be exclusive? after seeing me for again for the first time.