As a disinterested third-party, I can declare that she secretly loves him.

You haven't fallen in love, have you!? I won't have it! Having that man become my brother-in-law; I absolutely hate that!

I have never fallen in love with any girl.

Love sees no faults.

Bill seems to be stuck on Mary.

I'm falling in love with you.

Tom didn't expect to fall in love with Mary.

Tom didn't expect to fall in love with Mary.

I didn't expect that Tom would fall in love with Mary.

I didn't expect that Tom would fall in love with Mary.

Tom didn't expect to fall in love with Mary.

He often falls in love.

Tom was entranced by Mary's singing.

Are you falling in love with me?