Stephanie Davis (Sinead) and Owen Warner (Romeo) from Hollyoaks are currently dating.
From Corrie, Billy the vicar and Daniel Osbourne were a couple for a while. Also, Sarah Platt & Jason Grimshaw.
Going way, way back to the original Crossroads, onscreen couple David & Barbara Hunter (Ronald Allen & Sue Lloyd) were married after meeting on the show.
In Emmerdale, Claire King (Kim Tate) was married to her onscreen stepson Peter Amory (Chris Tate). While their marriage was on the rocks, he had an affair with co-star Samantha Giles (Bernice).
From EastEnders, Laura Beale & Gary Hobbs were married in real life for a while.