I'm not good at this...
I used too...
But now I'm just not...

Forgive me for not being there when you needed someone...
Forgive me for not being able to console you in times of grief...
Forgive me for not being able to soothe you in times of distress...
Forgive me for not being able to cheer you up in times of sadness...
Forgive me for not being able to ease the pain of missing someone you luv...