There's someone I'm in (unrequited) love with, but that person is busy now and I don't get replies to my emails.

Miyoko carried a torch so long, I think it gave her heartburn.

It was a one-sided love affair.

Stan has always carried a torch for Liz.

I do have a crush, but it's not mutual. He already has a lovely wife, anyways.

I don't like unrequited love; I want our love to be mutual.

Mary was Tom's high school crush.

You still have a crush on Tom? Give it up already.