Nae I think it is fine for you to not invite her to attend. Many of my student friends have developed great relationships with their follow through women and still not been invited to attend because the woman wasn't comfortable at the time, so if you don't think she has earnt the privilege I don't think you should feel obligated to extend an invitation.

TBH I felt similarly about the one who was following me, like she showed less interest / paid less 'attention' to me because i already had my own resources etc being a student myself. Lucky for me I didn't have to worry about whether to invite as she was on holidays at the time interstate.