Help..

I know everyone has been in this situation at least once... 
but i have a boyfriend.. and i also have a ex that im really really stuck on. i told my boyfriend that i still do have feelings for my ex. I've done the compare the good and the bad thing. i listened to Jasmine Sullivan I'm in love with another man & still haven't come to a conclusion on who i want to be with. ik a ex is a ex for a reason but sometimes that reason wasn't a legitimate reason. i just need some help because honestly i have no idea what to do. 
someone anyone please help me