Just my 2 cents... Perhaps it may not be the best thing to send him this link. This is an issue between the two of you and he may feel betrayed that you would discuss this with "strangers" (even though we're your friends) before talking to him about it.
You mentioned that he has done nothing but text you since he got there... Do you think he may suspect how much that is ticking off Mommy-In-Law Dearest???
He is letting her know exactly where his head and heart really are!
You mentioned that he has done nothing but text you since he got there... Do you think he may suspect how much that is ticking off Mommy-In-Law Dearest???