Should I tell him yet

[ReadytoMakeAChange]

So I told ‘D’H back in April that I wanted to separate. We have 2 kids together.
Due to our financial situation we’re still living together. We haven’t told the kids yet and are being amicable for their sake. Although we tend to take the kids out separately a fair bit, and my 13 year old knows that things aren’t right between us.
I want to move on but feel trapped due to not being able to afford rent, and the state of our house meaning us possibly losing money if we sell.
So we’ve been almost carrying on as normal I guess.
The thing is I’ve met someone else. I didn’t intend this to happen, and it’s only been a few weeks, but I think/hope that there’s a future in it.
I’ve had to lie when seeing him and say I’m seeing a friend, but it’s becoming increasingly difficult to do so, and I actually don’t want him to be a ‘dirty secret/affair’. Despite the far from ideal circumstances, he’s happy to wait for me, and we’re taking things really slowly.
So I guess my question is should I just be honest now? Or wait until I’m sorted with somewhere else to live, which could be some time?
I know things will be really awkward if I come clean but should I just do it and deal with the consequences?.

I know there’s no real right or wrong answer, but I’m wondering if anyone has experienced this, and what did you do?

I think the starting point needs to be telling the kids.
I think as adults you can separate well before that. Like I said, I've been separated from my husband since Jan but we've only recently told the kids as its really important that you are able to put on a united front for them to give them stability and security.
I don't think you are a horrible person in the slightest, even if you had gone out looking for someone, I would completely understand why, but things will be messy whether you and your ex get on or not as its an emotionally distressing life event and it's just not worth having someone else in on that.
And if your husband wants to play nasty, I don't doubt he would use knowledge of this man against you. Best to get yourself and the kids straight and fully understanding the separation before embarking on anything new.
But it's totally up to you what you want to do.

Same. A bit crazy and very selfish