Hello
WWIFN came onto a support thread for woman recently ditched (which I'm a part of) and asked some of us to come on here. I'm so sorry to read your story. It is so hard to move on, when you cannot make sense of the reason why your relationship is over and the fact he doesn't have the decency to do that and help you, makes me very
for you and 
I separated from my husband last October when my son was 11 months and my daughter was 2 yrs and 3 months. It was a bewildering time and I couldn't see the wood from the trees quite frankly. He wasn't being honest with me at all. The truth came out in a drip drip effect in the months after as I slowly worked out the truth from the lies and put pressure on him to be honest. The difference for me is my H didn't have the guts to end it with me, so I spent months trying to work things out whilst separated, not realising all the while that he was having his cake and eating it. The agony for you, is that he has suddenly ended it out of the blue 
The best thing I have done is to get counseling. It's a safe place for me to share my felings every week and it helps me to share them in a safe place. For a while before counseling, I was trying hard to be the perfect mummy whilst struggling with all the feelings on the inside, so sadly I sometimes turned into a shouty mummy as deep within I was finding things hard and it had to come out
My children watched a lot of CBeebies in the early days after we separated and ate a lot of fish fingers, baked beans and similar. Try and be kind to yourself, don't expect too much of yourself right now. If there are friends in real life who can help you right now ask them.
Go to citizens advice and find out where you stand. Make sure you have copies of all important bills, mortage information, bank statements etc. Take them with you to the meeting as well. The sooner you go and speak to them and know your rights the better. Also book a solicitors appointment as well. It will bring you peace when you know where you stand and what he can and can't do or have.
Create boundaries with him now, that if he wants to see the children he picks them up and takes them out. Or you drop them at his or similar. You need space at this painful time.
I need to go and get my DD ready for pre school but I am happy to follow this thread and support you anytime, anyday if you want to share.
I'll come back later. Things do get better! You will be happy without him one day, take one day at a time for now ((hugs))