Depression

My partner suffers with depression. A few months he's been really good, healthy, yesterday it was the day of his first therapy session, but he couldn't go. He had a panic attack and just cried in me, for around 2 hours, he lives in a different city, and it's hard, I'm home now, but today he hasn't home to work and has stayed in bed all day, I've said if he is exhausted and really quite ill today then he needs his rest, it's just a a bit tough, does anyone have any advice for similar situation?