Which is better?

I think I may be offending someone and it is beacause of a mental disorder.I want to tell them this.
I can tell them in real life but that means i have to confront my disorder or i can tell them over the net.
I always use the net to talk about something that i am not comfortable with which is probably making my disorder worse.

Which would be a better form of comunication in my cicrumstances?