How to deal with my boyfriends super annoying and controlling mother?

So she is so mean and annoying and pretty much hates me. She almost never lets us hang out and is always making up reasons why he can't go out. She will always say he cant go out because they might be doing something that day which they never end up doing. Or we will plan on hanging out and then that day she will say that he cant and tell him he has to do something like go shopping or something. It is so annoying because he can almost never hang out....what should I do?How to deal with my boyfriends super annoying and controlling mother?
.Patience once she knows you better she'll relent.Most mom's are wary of the company their little boy keeps.So the moms protect and defend the nest from all would be intruders