He don't like me, right?

他不喜欢我，对不对？

语法有问题don't该为doesn't

you are not his cup of tea

No, you should change the sentence to : He doesn't like me, right?
他根本不喜欢我,是吧?!

第三人称单复数的错误,应改为He doesn't like me,right

正统语法应该是he doesn't like me, right?
但是如果是美国黑人说的，就很正常。他们平时说的口语里面经常不分单复数的