When someone is crying, of course, the noble thing to do is to comfort them. But if someone is trying to hide their tears, it may also be noble to pretend you do not notice them.
A good laugh and a long sleep are the two best cures for anything.
I saw you at your worst and I stayed. You saw me at my best and you still left.
Take a shower. Wash away the bad thoughts. Cleanse your body. Pray. Put on some relaxing music. Get into bed. Breathe.