u/Outrageous_Kiwi7397

I hooked up with a woman for the first time ever, it was also my first sexual experience+first kiss. She was amazing, was kind enough to help me and geniunely a great person. This happened 2 days ago but i cant stop thinking about her even though it was just casual sex. She was 3 years older than me and before that night i shared some vulnerable stuff with her so i feel like my brain views that sex as affectionate. How long do these feelings last? (Im a m20)