What do you say to people ?

Hello,

Had a rough day.  Went to a support group I have been in for three weeks.  I have been feeling very depressed so hence, vulnerable and not real strong.  A guy in the group turned to me today and said in front of everyone, "You never share in the group". 

This of course is not true--not much is NEVER--and I do share in the group--funny thing is usually I share very much in groups if I feel comfortable.  So I felt he was just goading me and I already felt vulnerable so I had to say something....so I said I felt attacked.  Then I said I am there to focus on me and I think we should do that or something like that.  Then I said, "OK, I'm going to share something....I like to do things very slowly (meaning sharing slowly) .

He later came up to me and apologized but I still feel upset because this stuff happens mostly when I feel really vulnerable or triggered already. I felt like I couldn't breathe--the room became very tense.

I really do not like to be attacked in front of a group when I feel vulnerable already and everyone there feels scared and vulnerable, maybe mostly him.

Any insight?  Advice? 

Thanks

Marishka