I rejected this girl?feel bad?

ok,theres thi girl that liked me,and she was smart and sweet,but well,She wasn't attractive to me,So I didn't go out with her,so well,I told her I was interested in her and I felt so bad,cause I've been rejected by a girl and she did it rudely.Well,I gave her my phone number and we talk on the phone as friends and we went to the movies as friends?But I feel kind of bad,because some girls don't consider me attractive either?I was nice about it?I just feel bad?