<human>: Can you summarize the given text in a few sentences?

I feel dumb for having to ask about social media.

I currently follow a former student on Tumblr. It's a little closer to a "friend" relationship -- she's been over to my place for dinner and my husband and I went to hers once to help her fix her internet. I also helped her find a therapist (my therapist, at the campus psych clinic) this fall.

I initially followed her on Tumblr because it was something we had in common. However, over the year, the amount of self-deprecating stuff she posts has been really getting to me. Also, it's embarrassing to admit, but it really really bothers me when she talks about therapy.

Basically, I feel like a terrible person because I know she has self-esteem issues (she frontloads EVERYTHING about herself with a negative statement, for example) and she sees me as a mentor. I also know that she has a Tumblr feature where she can see who has unfollowed her and she's specifically stated how much it bothers her when people she's friends with unfollow her.

I don't know what to do -- her posts are definitely getting to me, yet I feel like a terrible person for doing something that I think will harm her. 

I know it was stupid to follow her in the first place, btw. This is the only student I've ever really communicated with -- I am definitely guilty of feeling like I could help her find some self-esteem, even just as an older friend. (Just for the record, it was a good semester after she took my class that we ever talked online.) 

Please help -- any suggestions would be greatly appreciated!
<bot>: I follow my former student, who has self-esteem problems, on Tumblr. I can't handle it anymore but feel like a terrible person.