What Should I Do

What should i do
I went out wit him about two years ago
We went out three times
Two years later (now)
He went out with my best friend
Then they broke up
After they broke
Me and him became best friends
Then we stopped talking because
He started going out with some other girl
And i didnt want her to think wrong
So then we stopped talkin
About 3 weeks after they broke up
We started talkin
But not as best friends
Only as friends
Anf then today
I had asked who he likes
And he said three people
And i ask who are they
And he named two people
Then i asked
Who`s the third one
And he said Me!!
And i was really surprised
And he knows that i am completely in love with my current boyfriend
And i was so surprised
But at a point
I still have feelings for him
But i dont know if i should stay with my boyfriend
Or
Brake up with him to go with the other
Or just stay single
Please help me!!!!