你老公要离的原因:
1: 之一:你是个好妈妈, 但不是个好妻子。这方面你一定要改善。你家人可以帮你吗? 不行的话, 顾人看孩子做家务。 和老公去date,保证和老公的quality time. This is good for you as well. You need to enjoy your own life. kids and husband should NOT conflict with each other.
2: 之二: 中年危机 and fear for the death. Your husband felt weak and wanted to escape. Try to understand him. It is normal for the human to feel weak some time:-). Talk about it and this may be a temporal stage in his life. With your help, he may get over quickly.
3: 之三: no bonding with kids. He doesn't think he is capable to provide any help in this family. You should train him as he does have natural fatherhood. starting five minutes a day but consistently, ask him to do something with kids he likes, maybe reading his childhood book. telling his favorite book, the sports he likes. He may see how he could have fun with kids.
In my opinion, it is too early to quit without trying to fix the problem first. Looking for the good marriage counsel. You have at least 50% chance to make this work. Good luck!