Why do unhappy people act like it’s someone else’s job to make them happy?

My selfish ex wife that still lives with me , will not leave the house , she constantly tells me she isn’t happy , I tell her to go be happy , I am not stopping her from leaving whatsoever , she says I owe her? I laugh and said I don’t owe you shit , I am not the one that ruined our marriage , so if you aren’t happy , go live your life elsewhere, cuz I will be happy once you are gone , so stop acting like it’s my job to make you happy. The girl is a complete wack job and she wonders why barely anyone likes her , she is a selfish pos person that pretty much admitted to me that she is using me because I owe her? What kind of shit is that? I just ignore her and tell her to get out of my face , She also watches these dumb ass movies and constantly compares her life to them and making comments , like that’s where she deserve to be , and says she deserves to be treated like that , or she compares herself to people on social media saying she should be living that life style blah blah blah , I tell her to go find it , because you aren’t getting that with me you had your chance and blew it. She is never satisfied with anything , she always feels she deserves better
Why do unhappy people act like it’s someone else’s job to make them happy?
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