But it takes 15 to 20 hours a week to establish and maintain a genuinely close relationship. Forty five minutes is barely a down payment on that.
I have known "players" and how they operate. They are good at creating an illusion of closeness, often based on outright lies. Their goal is sex, and her welfare be damned.
Forty five minutes is also not enough time to verify if what they are telling you is something genuine. It can take weeks to learn that what he shared day one to make you feel all squishy is all made up BS.
So 45 minutes may be enough to create certain feelings, but if you think that is genuinely a close friend that you can trust, you have a lot to learn about how relationships work.