如果您不想理他了，可以使用表达"I don't want to deal with him/her anymore"来表示您的意思。这个表达的来源是英文中的动词"deal with"，意思是"处理，应对"。

举例来说，您可以这样使用这个表达：

"I'm tired of deapng with his constant complaining. I don't want to deal with him anymore." (我厌倦了他不断抱怨。我不想再理他了。)
"She's always causing problems. I don't want to deal with her anymore." (她总是制造麻烦。我不想再理他了。)

您也可以使用类似的表达来表达这个意思，例如"I don't want to deal with this anymore" (我不想再理这件事了) 或者 "I don't want to put up with him/her anymore" (我不想再忍受他/她了)。