You can't force yourself to love someone.
You can't sleep with them to "see what it feels like",
especially when they've told you on numerous occasions that
they love you.
They love you at 2:53am, they love you when you've taken too many drugs and can't walk properly,
they love you when it's time to go to the party and when it's
time to leave.
They love you when you're sat in Nando's on a Saturday afternoon.
You can't sleep with them, to see whether you can love them back. Love doesn't mean exchanging
bodily fluids...at least,
I hope it doesn't.