Shut up.You can't make me do anything I don't wanna do.
How did you even ask him out?What's the story?
Other options:
no subject
Shut up.
You can't make me do anything I don't wanna do.
There is a few moments of pause before he adds;
How did you even ask him out?
What's the story?
He's not fishing for advice. Don't even suggest it.