It doesn’t matter what’s going on with him…opting out of celebrating Christmas with your two young kids is diabolical.
If you marry a mama’s boy, it’s going to go one of two ways. If you’re lucky, you’ll marry a guy who looks up to his mother and has the utmost respect for women in general. He deeply cares for his mother and will do anything within reason for her, but he won’t put his love for her above all of his other responsibilities. He’s not going to let his mother live in his house for years if he knows that it will be destructive for his marriage. After all, once you have a spouse and kids, you must put their needs above the needs of your parents if you want to maintain a healthy family dynamic.
If you’re unlucky, you’ll marry a mama’s boy who puts his mother before his spouse, his kids, and even himself. Mothers who view their sons as extensions of their husbands tend to have unhealthy boundaries, asking them to do everything for them. They will manipulate their sons into waiting on them hand and foot, because they’re entitled to that treatment for the mere fact of being a mother. It’s not the mama boy’s fault, per se, but they need to choose not to let their mother boss them around once they’re an adult paying their own bills.