Disgusted by mil!

Backstory I’m currently pregnant and it’s my MILs first grand baby, my husband is also military. My MIL and I had an incident a few weeks ago where she basically had a break down because I told her my husband wanted to re enlist... like full on blown crying saying how she’s never gonna see her grandchild and even got super aggressive with me and got in my space asking how I felt about it... so fast forward to yesterday. I’m talking on the phone with my husband(he is deployed) he sounded sad and stressed and so I asked what’s wrong and he said his mother MESSAGED him on FB saying how she was disappointed he’s reenlisting and she will never see her grandson, and how he’s just breaking her heart.. mind you they rarely get to talk because he’s on deployment and she decides to use that time they do to GUILT him into doing what she wants for OUR future. It DISGUSTS me. And pisses me off! My husband was so hurt!!! I understand she’s excited about her first grandchild but he is a GROWN adult and can and will make decisions that are best for US!!! I’m just hoping he doesn’t fall into her trap and decide not to stay in because I know he will regret it! This lady is to much! She already is convinced our son is her child... her words... “I just feel like he’s my son”