I think having him is better than no one. A warm body, someone to go out with, being part of a couple, having help, money, etc. I read the dating stories here and I'm thinking that's a no from me
Oh please. Not that you're anywhere near ready to date - maybe take your time until the kids are older. Me personally, I've had my share of dating adventures since my ex left. BUT - one common thread - EVERY guy I have dated since my ex has valued me more than he did. They don't see my imperfections like ex did, they think I'm fabulous, and even the sex has generally been better (although it was really good with my ex, but oh my - some of my boyfriends since? HOT!)
You can do better if that's what you want. Meanwhile work on your friendships and other relationships - they can fill a lot of that companionship need.
A good friend of mine was in a great unsigned band in the 80's called The Rails, and one of my favorite songs of theirs had the chorus "I'm lonelier with you than when I'm alone". Embrace your singlehood for now, there will be time later when you're healed to decide what you do or don't want from a man. Once this virus is tamed, start a monthly (or weekly) potluck dinner at your house. Expand your friendship horizons.