My mil is deceased but he when she was alive he'd call her every Friday and we'd visit whenever we could (they lived 4hrs away), but my sister's husband? OMG. He is at his mom's house every.single.day. Plus he's always fixing things over there for her when things at his own house are falling apart and being neglected. His dad's still living and physically able to do just as much so my sister's really irritated that her husband is always over there.
Is your SO a mama's boy? To what extent?