My mother-in-law works out of town and wants to send a video to watch her grandson but never tells her daughter-in-law

This kind of thing is normal. Because the relationship between daughter-in-law and mother-in-law is the most difficult relationship in the family! To put it more seriously, the daughter-in-law and mother-in-law are natural enemies. Few people get along too well. Therefore, it should be commonplace and normal for a mother-in-law to be unwilling or unwilling to talk to her daughter-in-law. However, this mother-in-law is also a not very wise mother-in-law. She does not stick to trivial matters and artificially makes the relationship between mother-in-law and daughter-in-law so unsmooth. It will be difficult for her daughter-in-law to treat her well in the future, and it will not do any good to the mother-in-law herself!