Why is my friend incapable of supporting me or saying anything nice about me?

I am in this friendship group it’s me and this other girl. I have noticed that of the girls in the friendship group always likes and supports the other girls post, but she never ever likes anything I post. I see that she is always active and online and she is always reacting to the other girls post with a love heart but she ignores mine. She always views my stories too but she is incapable of supporting anything I ever post.

I know she sees mine too because she views all my stories I post. She also makes comments about what I post in person like “I keep seeing you going out on nights out and I don’t know how you manage to do that and function at work the next day. I couldn’t do that” except the other girl in the friendship group posts night out photos and she has no issue liking her photos and supporting her, and commenting nice things on her photos. For New Year’s Eve she commented on my friends post “gorgeous girl” but then when it came round to my New Year’s Eve post she completely ignored it. In person she’s always complimenting my friend and building her up but she just ignores me. I have also been told that I’m very photogenic and I take great photos so I don’t understand why she can’t support me like she supports the other girl in the group

why does she never support me on social media but has no problem supporting my friend?

Why is my friend incapable of supporting me or saying anything nice about me?
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