It is nice to have good relationships with your family. I'm glad that your mother in law is able to tell you how much she cares for you. We are not able to tell Jeremy and B. how much we love them because they won't communicate with any family.
I would wonder that it could be because of us, if they kept in touch with other family members (her family, his mom) but they don't talk to anyone - other than the recent email to Jeremy's mom a couple of weeks ago.