What do you do when you really love somebody but they don’t do the things you need in the relationship even after we’ve talked about it?

It’s hard because I don’t think I’ve ever loved somebody as much and early on she did put in much more effort but now I feel not cared for and I just don’t know what to do
What do you do when you really love somebody but they don’t do the things you need in the relationship even after we’ve talked about it?
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