My boyfriends best friend told me hy likes me and i lyk him?

ok. so me and my boyfriends best friend (tracy) r talking and he tells me that he likes me. now this guy is my ex. i broke up wit him for my current boyfriend. but i recently discovered that i still really like tracy. but i dont wanna hurt my current b/f by dumping him for tracy. wat should i do?! and tracy has a g/f.