Husband needs therapy

Basically his mom was the town skank and slept with everyone and when he turned 8 she left and pretty much called on holidays and birthdays and from time to time in between. Than she decided she wanted to adopt children and i guess she needed him to sign some paper or something. Idk it was 7 years ago. And ever since that shes been trying to be closer to him and be involved in his life. 

I can understand that he still has animosity towards her but i feel he either needs to embrace her or just cut her out for good bc what hes doing isnt healthy for anyone. He puts on a happy face when shes around and then talks all kinds of shit when  she leaves. He wont answer the phone when she calls, but he will text her.

When holidays come around he doesnt want to spend time with that side of the family and then i end up beingr the middle man (like today, easter) and its so awkward. and husband and i end up fighting. Im currently sitting in my car at walmart 20 miles from my house bc i had to get away from his bitching and yelling about something as stupid as going to dinner. 

And we have a baby now so everyone wants us to come over and IM the one that has to make excuses as to why were not coming, and they probably think its me that doesnt want to bring the baby over. I want the baby to have all of her grandparents in her life. 

The womans not a drug addict or a jailbird or anything like that. She made some very bad choices in the past but she has straightend up. He either needs to give her a second chance or cut her out bc this is getting to be ridiculous. 

This is why he needs therapy to take care of his mommy issues. Im not trying to make it seem like im making fun of him either. Im sure it was hard being a little boy and having his mom leave and not come back.

How can i get him to go to therapy??

I didnt mean for this to be so long 😱