Be the best friend you can and actually show care.
Uhm well you could hold hands/cuddle/smosh together(like a hug but tighter and more like idk these are just what I would have liked and also tell him your there, not to much though. Oh and call him yours and stuff:D
Ohh sorry lol I just read she soo like edit this^
And idk about women they are different but I have like all my close people (few are guys). Soo well this is what I would have liked from my ex..
Ignore their moods as much as possible , they'll live through .