He's so emotionally uninvested- I find his attitude really infuriating!
Make an effort or get out of the relationship. No wonder her family don't like him if he's like this around them. Could not deal with a man-child who never looks up from his phone, I find it almost passive aggressive in a way. As in, "I'd rather browse endlessly looking at nothing/hot girls on my phone than get involved in human interaction with those around me". Feel sorry for Zoe just accepting this as her lot but I suppose she's probably the same- always on her phone.