<human>: So I've been tutoring biology at my university through a program at the library for over a year now and it's a job I really enjoy. I tutor a couple dozen students for various bio classes and I've met lots of people that are really fun to be around. 

So, this particular student is one of them- she's very fun and chatty. I've been tutoring her for a couple months and so I've gotten to know her really well. She's a classic oversharer. She frequently shares inappropriate details about her relationship with her boyfriend and will frequently change the subject from her work to family, boyfriend, the weekend, etc. 

Here's the problem- she's been asking me to hang out outside of tutoring each time I see her and I don't know how to politely say no. She talks about us hanging out over the summer and grabbing dinner and things like that, but we really just don't have too much in common and I'm not really interested in developing a friendship. I do have a few more appointments with her before the end of the semester and I'm not sure how to say no or at least avoid the topic. If she made me uncomfortable I wouldn't have a hard time being blunt, but she really is a very nice person and I don't want to offend her. What should I say if she brings it up again?

Can you summarize the given text in a few sentences?
<bot>: Student that I tutor wants to be friends and hang out ouside of school and I don't. How do I say no without hurting any feelings?