I don't know what to do anymore..

My wife left me and took the kids 2 weeks ago. I had just gotten out if the hospital because ive been shitting blood and wake up to them gone. She says it was the final straw because i came home from the hospital and put the kids to bed while she did school work. I was frustrated had a long day and was raising my voice at the kids for not listening at bed time.

I've talked to the kids once on the phone a few days after they left but now she refuses to let me see them or talk to them on the phone because she says my mental health isn't stable. Which I have some mental health struggles but I'm going to therapy and a psycatrist. My mental health has never made me violent towards anyone.

Today I wake up to police at my door for a welfare check. I'm completely taken off guard. They say that my wife called in a welfare check because I made suicidal statements. I have not made any suicidal statements in months (which I got help for) and I had just texted her the night before regarding finances and this morning asking if could at least talk to the kids on the phone. To which she never replied.

Then while at work I get a nasty text about how she stopped by and our cats weren't fed, had no food (I just fed them last night) and how I've ordered pizza/mexican food and bought beer (second six pack I've bought this year) and how they need more money. I literally don't have any money. I paid our bills, sent her some money for the kids and got a few grocery's and gas. Now I just feel guilty for my depression splurge of pizza and beer.

I'm just so frustrated. I've been the sole provider our whole marriage and money is tight. She is now expecting me to pay her first months rent somewhere else while maintaining all our other bills.

I already work insane hours, 50-60 hour work weeks and now to add more rent on is absolutely insane.

I seriously don't know if I can take it and feel like I might have to check myself in somewhere but I read that can affect child custody and that's the last thing I want.

A word of advice or anything would honestly help. I pretty much have no one.

Thanks in advance, I took some melatonin so hopefully I can get some sleep tonight.