Other than just performance value it's prolly not romantic, but by request of my brother I recently learned River of Deceit by Mad Season. May not look familiar, but it got lots of airplay and you'll recognize it if you don't. Easy lil pulloffs and mostly a 2 chord song with fills and chorus.

Otherwise maybe a classical study. There's even one called Romance, but it takes some practice. But there's other ones that are easy to pick up quick.
Look at lesson 2, Allegro. Nice rolling melody.
classtab