Husband won't come home

So we had a fight today where I raised my voice at his mon for taking off with my toddler in a busy public place for hours. He won't speak to me and left. I've texted him once and called him once and he hasn't read my text and sent my call to voicemail. I'm at the end of the rope with him and his mom. Last time I tried to talk to her she put her hands on me. I told her today I don't trust her with my children. I mean it.

I am so in love with my husband and I'm so exhausted by his mom. She has been the only issue in our marriage. It has been a decade of her ignoring my wishes and I can take that but when it comes to my kids I. I'm not about to stop her from being a grandma but I'm not allowing her to be negligent with my children which she's been.

I've tried talking to her or him and it is absolutely no use. I'm exhausted. I don't know what to do anymore but him leaving isn't a good sign. I can't even cry because I'm so mad.

Update: Husband did come home. He actually went and confronted his mom. He agrees what she did was wrong. She broke trust. We've had issue with her. If she were anyone else she wouldn't be in our lives. We don't believe in divorce but he's also never left like that before. Turns out he left to go to her home and yell at her. Truth is just because you are a grandma doesn't give you the right to ruin other people's lives for your own justification. Grandma's get boundaries when clearly they are not good people.