You should
absolutely join the sorority you fell in love with! It's not like you are unaware of the other sororities on campus. You investigated all your choices, and you found the one that you feel is the right fit with you. That's the very best outcome that recruitment could have.
Just remember -- in a few years, it will be your turn to come back as an alumna and help make a COB event special for a future PNM.
Hugs.
Ginger