Annoyed at MIL

Kail • I`m 24 and a nursing student. I got married on October 8, 2015. I have PCOS.
Tomorrow is my husband's birthday. I wanted to surprise him with a good breakfast when he got home, so before he left for work I told him to hurry home in the morning.
He texted me about an hour ago and said his mom was throwing a hissy fit about him eating breakfast with her for his birthday. 
We got married earlier this month. His mom has overstepped her boundaries with me before (much bigger issues than this, though). She tried to invite people to our wedding even though it was private. 
I texted her and told her that next time she does anything like this to let me know first so I can plan accordingly. She sent back that she hadn't considered me doing anything for him. 
These are our first birthdays as a married couple (mine was last Sunday). I just wanted it to be special for him. I wanted the first woman he spent time with on his birthday to be his wife. 
I just wanted to complain. Any tips on how to deal with an overbearing MIL? I try to avoid her as much as possible, but I really feel like she didn't respect me on this.