I have a lady and we have 2 kids with her but...

The solution does not lie in leaving your wife alone, but rather and the most appropriate solution is to give her an opportunity to improve the relationship between you and to take care of the things that she neglects, knowing that women in general like to their men to be frank about the things that bring them closer to them. Try to find another way, which is to be honest with her about your feelings, encourage her to change and get closer to her. Trust that no one may decide to get close to her or separate from her.  But let your first goal be to improve the course of the relationship between you and give the necessary opportunities.  So that your children will not be the victim.