Sorry if this is similar to another thread about group issues but I didn't want to hijack that thread.
I am in a group of women participating in a hobby. A woman, who is a friend of many of the others, joined the group later on. I do know her outside the group, but she very good friends with the others, which is why she joined. TBH I don't know why she did as she hardly ever turns up to the hobby but uses the group chat like a FB page with constant comments and photos.
I am commenting less and less because when I do, she seems to make remarks that come across to me as digs. I am talking about pettily picking me up on something I have said, or a grammatical error. She likes to repeat things I have said with "speech marks".
The hobby is starting up again this weekend and I feel a bit sick in may stomach. I feel a bit secondary school with the nasty girls. It doesn't feel like a direct dig, and I think if I pulled her up on it, I would get told it was a joke and where is my sense of humour etc. Also, she is very good friends with the others and I think they'd ditch me before her. I've wanted to do this hobby for ages and not had the chance to do it until we formed this group.
Not sure what to do. I think I'd like to make her aware that I am onto her, which may make it stop. I also may think I am being oversensitive, but my spider senses say I am not. I am obviously lacking in assertiveness!