We moved four years ago to the street in Llanelli next to where my wife grew up, and where her father still lives. She has shown no interest (yet?!) in developing the Cymraeg she learned in school, but as I throw bits of Cymraeg at her when practising, it's clear she knows more than she's ever let on.
When I was a student I got into loads of Welsh language bands - Llwybr Llaethog, Datblygu, Anrhefn, Fflaps etc, and and now love listening to the likes of 9 Bach, Gwenno, Adwaith, Georgia Ruth, but I'm dimly aware of a rich cultural and literary life in which I can only dip my toes in the shallows at the moment.
So there's my longer answer!