Actually, this question you asked is normal. Some people are homebody and don't like shopping or going out to play. Personally, I don't like shopping. When I was in college, my roommate asked me to go shopping, and I wouldn't go unless I had something to buy. At that time, girls usually liked shopping in their spare time, and I liked going to the library, so every time I refused others, I felt very uncomfortable. But I promised to go shopping. I have nothing to buy myself, and I feel uncomfortable, so you understand. I think your friend's answer is normal. I can only say that your hobbies are different, but friends, not everyone should be similar, so don't think too much about this. If she has the same hobbies as you in other ways, maybe.