I agree with the person who said that if he wants to be with you, he will have to “cleave” to you and leave his mother behind. My MIL pulled some really nasty crud with us which was instigated mostly by my SIL- my husband would up going over 2 years with cutting out contact - and it’s changed little, I’ve begun speaking to her some, but I’m unsure if my husband will ever feel comfortable having a relationship with his mom or SIL again - sometimes there is just way too much hurt there to need to fix. It was kind of sad, but if you had seen some of the e-mails, you would understand. I will grant you his relationship wasn’t all great before hand, but he knew what he had to do afterwords.
Good Luck - don’t let her win by pulling you two apart.
Sincerely,
Ryecroft
Annie