AITA for calling my bf’s ex wife to come get their kids?
I 27F have been with my boyfriend 35M for 6 months(we'll call him Jeff...fake name btw). He’s divorced and has two kids, 7yr old and 13. He has shared custody with his ex wife. Idk much about her but they seem to co-parent well. I have not been introduced to his kids as his gf yet, and that’s fine by me. I’m a math teacher, and his 13yo has been struggling in math. He asked if I could tutor him. So right now his kids know me as the math tutor, we’ve had 5 tutoring classes so far.
My sister (19F) goes to college about 30 minutes away from where I live. Her last exam ended Wednesday at 6:30. We planned for me to pick her (and all of her dorm stuff) up. Then drive to our parents place (3hr away), Thurs-Sun we had a family camping trip. Jeff knew all about the trip. He asked if I could tutor on Wednesday, I said yes but I’d need to leave by 6 to pick up my sister, he understood.
I get to Jeff’s at 4:45, I and the 13yo get to tutoring. Jeff goes to start dinner at 5:30 and realizes he’s out of milk. He said he was going to the store at the end of the street. 20 mins later he isn’t back so I text him, he said he’d be home in a minute, he had to make another stop. Another 10 mins went by and he’s not back. We wrapped up tutoring and the 13yo went to play with 7yo. I tried calling Jeff and he wasn't picking. By 6:15 I was annoyed. I checked his location on Snapchat and saw he’s at a restaurant 3 miles away. I texted him and told him I saw where he was, and he needs to come home because I need to leave now. He responds that his brother had car trouble, and he had to pick him up but they’re coming back right now. At 6:35 my sister texted that she’ll be ready soon. Jeff’s location hadn’t changed.
I told the kids their dad was out helping their uncle and I have to leave, but I can’t leave them alone, so we need to call their mom. The oldest gave me the number and I called her and explained the situation. She came right over and was clearly annoyed with Jeff. We checked his location at 7 and he was still at the restaurant. She said she’d stay with the kids, I left at 7:15.
At 7:38pm Jeff texted saying “sorry this is going to take awhile. Order pizza for you and the kids and I’ll pay you back.” I didn’t see that text until I got to the dorms to pick my sister up, and by then I was so pissed I didn’t bother responding.
At 9:45 Jeff called me and angrily asked me why did I had to call his ex. He said this was going to cause custody issues for him, he was helping his brother out in an emergency and thought my sister and I could be understanding. He never communicated that with me though. I tried to apologize/explain and he just told me I have no idea how much I “fucked up” his life and then hung up on me. I sent him a text the next days to see if he’d calmed down and would explain what happened, but he only replied to tell me what a mess I’d made of his life.
I think I might have messed up because I didn’t tell Jeff I was calling his ex. AITA?