Bad relationship with my sister?

ever since I was a child, my sister was always cold, I would always wanna play with her, want attention etc but she wasn’t really affectionate. When I was depressed and in mental hospital she didn’t wanna see me because it was too ” stressful” and ” heavy” for her when I needed her support... so now I’m 21 and she’s 22. And I just can’t seem to get close to her anymore, not because she’s still cold but because I just gave up on our relationship, I’m healthy and doing better now and she’s just competitive with me and an enemy instead of a big sister? So I can’t just be fake and pretend to still like her... we stopped talking and we ignore eachother in the house, is it weird?
Bad relationship with my sister?
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