DH just said he doesn’t want to be with me anymore

You don't need this specimen in your life, OP.
Your daughter will be fine, better off in a long run if you kick IT to the kerb now.
Friendly with a female colleague, the childish twat.

While he is at work, find out everything you can about all his financial situstion, including, if possible, account names and numbers, pension providers and reference numbers etc. How much he earns, what savings he has etc. Write it all down and hide it, then take it with you when you go to get advice. That way you will know if he is lying when he makes his financial declaration for a divorce.

You're not showing your DD a loving relationship, so no concerns there.

You sound great OP and massively underappreciated. He doesn't deserve you.

How many more red flags do you need? And you think thia is healthy for your children?

My parents split when I was an adult. It would have been better for everyone if they had split when I was a young child.
This must be a very difficult time for you op but you will get through it. You sound like a lovely person. Lots of women on mumsnet have been through this and can offer you good practical advice but also support.
You and your dc deserve better.

I get this. My kids are young adults now and my biggest worry has always been their well-being. Always will be. But, in my case, they weren’t witnessing a loving relationship. I hope that I’ve demonstrated that it’s ok to say “enough.” You’ll never stop caring about how your children feel. But it’s absolutely ok to focus on how you’re feeling as well.

I’m sorry you’re going through this. You do really need to tell him to fuck all the way off. He is not on your side

He’s clearly had his head turned at the very least. More fool him. You can’t live like this and I think you’re being way too hard on yourself. He’s a selfish arsehole and you’ll be well rid. Divorce isn’t great for kids but neither is having a their dad be awful to their mother. That’s on him, not you. Good luck and hang in there.

I’m wondering if this ends up being a great move for you longer term OP. I suspect in 5 years time you’ll be thankful he’s (obviously cheated and) leaving. It gives you a chance to be the mum you want to be fully and, in time, meet someone who will respect you if this is what you want down the line.

Divorce isn’t ideal for kids but you can’t be blamed for your husband leaving you over 6 months of hardship. You can’t force him to be a good and loyal husband, clearly he lacks morals.

I remember your last thread and thought you deserve better.
Let him go. He's not worth even giving a fuck about.
Yes it's going to be hard but you are worth more than how he drains you.
You might have a lot to go through but it will get sorted and you can rebuild your life. If you stay together he will drain you forever.

The most precious things are your children and your own worth.
I wasted 17 years with 1 bastard and lost all my 30s to coercive control. You can't get time back you shouldn't sleepwalk through your life in a bad relationship.

I'm sorry you are going through this when you have a new baby.

Honestly this is going nowhere. I know it’s difficult but best thing is to focus on splitting up in a civilised way and becoming functional co-parents to your kids. You sound like you’ve got a good job, 2 kids and so every chance of building a lovely life for yourself and your kids.

When my marriage ended, I was terrified. Had no idea how I would function. Now, quite a few years on, I have no idea why I thought I deserved such fuckery.

I’m absolutely not telling you to LTB. I didn’t. He told me that he didn’t want to be with me (and had met someone else.)

I’m just saying, you deserve so much better than this.

Turns out my biggest fear was mostly financial. It often is. It’s a good place to start. Once I knew I could manage financially, I had a safety net for the emotional stuff. And that took time. And therapy. But I’m thriving now. You will be too.

Think about what you actually want from life. What will make you happy. How can you thrive? Because this man is actively bringing you down. You feel awful because he’s making you feel awful.

you deserve better and I send you all the good wishes I can muster.

Lovely, unless he wants to work on things, there is not much point doing anything other than preparing yourself emotionally and practically for being a single parent. That means getting armed with his financial info as much as you can, finding out what you could claim on UC and thinking about what shared residency of the children would look like..with the very young one it's unlikely that 50/50 would work. Don't head in the sand this. Be proactive and quietly determined.

The first comment on your other post was correct

Tell him that I said that he is a weak, twattish man baby and that you, the op, are better off without him.

He can do weekends as a parent and you'll have some free time to find yourself again ❤️