I’m really upset..

So my wife and I have been so tense the past week since she mentioned she wanted to separate to try and focus on healing from our baby loss two months ago.. I accepted it then it became about resentment toward me but then she just almost became a new person, overnight she wanted these friends and as soon as I questioned anything it was me being controlling, when we we’re together literally we were glued together no friends nothing.. only opposite shifts, so it was a drastic change I thought we could make that change still together and have friends we trust and stuff she didn’t need to separate from me.. but then tonight she goes out with these two friends she told me she’d be home in time to get our 16 month old dinner and down for sleep as I work early. & 6 hours later I’m up worrying because she won’t answer my calls I have no texts nothing, I’m so scared.. and 45 minutes later she texts me saying hi and she’s too drunk still and hanging out still drinking water.. she answered the phone in such a way.. and she couldn’t answer one question straight, “what are you doing?” And it sounded like she was in a car. But she tells me our car is somewhere else. I just can’t keep going through this, im mentally broken, I’m so heartbroken and have to show up for our baby while she decides how to heal from all of this on her own and doesn’t see me.