My younger sister (21 yrs, and I'm 23) has been dating this guy for 5 years now. He cheats on her left and right, and it's emotionally draining on me. Every time he does something like this, I think "now FINALLY she will end it", but she never does. She's back together with him the same day it happens and it drives me nuts. She doesn't seem to care about anyone else but him. It makes me feel crappy that she can treat me, who cares about her so much, far worse than she treats the guy who disrespects her so much.
I have had problems with anxiety for a few years now, to the point that I sometimes feel sick to my stomach and can't eat. I just now realized that this anxiety is stemming from my worry about her. When I was a kid I would have nightmares that I couldn't protect her and she was being hurt.
Can someone please give me advice on how I can get over this anxiety about my sister? I am sick of worrying about her life and what's going wrong with it. She's 21 now and old enough to deal with her life herself, but I can't get out of the mentality that she's still my baby sister who needs protecting. Sometimes I feel like I need to cut her off because it stresses me out so much. It's not that she's constantly at the forefront of my thoughts, but I know that its in my subconsciousness and the source of my anxiety symptoms.
Please any advice on what I should do would be immensely appreciated.
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