Re: what to tell your child ?
Hey Diamond. You won't have to explain anything to her until she is old enough to understand somethings. I guess when she's at least about 3? In any case you could make it simple and say that mummy n daddy used to live together but when you were a little baby it was not nice to live for you or your mummy to live there and it made u both happy to live somewhere else, away from things that made u sad.
At the end of the day things will work out, it will take time to get used to the situation. U don't know how things are going to be for u in 2 or 3 years time, I do wish (and believe!) that they will be much better than they are now, inshallah.
Bear in mind that someone who hasn't known anything else won't miss it.