Your friend may feel that you are truly her only friend.  If this is the case, it's easy to understand why she may want to spend so much time with you.  Introducing your friend to some new people may help your friend to feel more connected to other people and start to branch out a bit more.  This can be a good way for you both to enjoy the company of other people and still maintain your friendship.  You can try hanging out together in larger groups to let your friend get to know other people. Ask your other friends to try and spend time with your clingy friend. If you tell your friend you are busy and can't hang out, suggest that they meet with other people who you both know. Don't feel pressured into meeting with your friend if you don't want to.  Whenever you are making plans, make sure that it's a plan you think would be enjoyable and that you have time for.  Always make sure that any time you are meeting with your friend that it will be good for both of you.  Don't feel pressured into meeting at a time or place that you don't want to. If you don’t want to meet up with your friend, then you might say something like, “That won’t work for me. Can we plan on a different day?” You might also want to set some basic limits.  For example, you might meet your friend once a month for a movie night. You might approach this limit by saying something like, “I like seeing movies with you, but I really only have the time and money to see a movie once per month. Let’s make the first Friday of the month our movie night.” If your friend is constantly calling or texting, you might need to tell her some specific days and times that are okay for her to contact you.  You might be at work or busy during certain times or days and unable to speak with your friend, or you might just not want to see your friend on certain days of the week. Try letting your friend know when you are free. For example, you might say, “I am really busy on Monday, Wednesday, Friday, and Sunday, so I might not be able to talk at all on those days....

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Write a summary of the previous text in Vietnamese:
Giới thiệu bạn của bạn với người mới. Thiết lập kế hoạch mà cả hai đều cảm thấy thoải mái. Cho bạn của bạn biết về ngày thuận lợi với bạn. Khuyến khích người đó tìm kiếm sự trợ giúp. Đối chất với người đó.