Can anyone give the lyrics of a song which is parallel to that of David Archuleta's "Crush?

I heard a song in the car which had a female vocal, which had lyrics very similar to that of David Archuleta’s "Crush". It also dealt with themes such as "being more than friends" and the like. I was only able to grasp the "more than friends" part, and I really want to get this song.

It’s not More Than Friends by Estelle, or Just Friends by the Jonas Brothers.

Hope you can help me. 😀

big time rush lyrics