Taylor Swift and Joe Alwyn are «in it for the long haul.» The singer and the actor have been dating for about four years and appear to be stronger than ever. Just last week, they were photographed holding hands on a rare outing in London, where they are quarantining together.A source tells ET, «Taylor has gotten more and more comfortable being public with Joe and letting fans in on their romance in a way that she feels is still protecting it.