What would you do if your brain wanted you to love someone but your heart said the opposite?

I would say follow your heart but take your brain with you girl so that you won't get hurt i had this boy bestfriend and he makes me laugh jo matter what but he has alots of problems and is now doing stupid thigs i love him even thought i didn't wanted to believe it myself but i'm liking this other dude now so i just learned to let go sometimes you just need to know if he will be the right one or not so i listened to my heart to let him go and took my brain with me because he isn't the right one for me based on his behaviour and the path he choosed... if you believe that you really want to be with that person ask yourself why? what does he HAVE that i want in a "man" don't follow what other people gonna tell you just listen to heart and doublethink about it^^ have a blessed day beloved