No not at all! She has such a unique voice and personality.
I'm I weird for liking Selena Gomez and her music? cause I absolutely love her and her music, to me she's a good singer with a good energetic personally and a good sense of humour. Her music is so catchy and good. so I'm I weird for liking her and her music?
Nope. You are entitled to your own taste and this is a right that you own, nobody can tell you what to listen, it's your choice and you should pick up something that you get attracted to and enjoy. As long as her musics makes you feel good and you have an investment in her creations, all you need to do is experience the joy and leave alone other negatives.
I'm not a fan but i like few songs of her as well, she has a good voice.