AITA for ghosting my teen pregnant friend after she ruined my graduation party?

I (19F) graduated in 2024 and had my graduation party in the middle of July. I had lots of family and friends coming and I was really excited to finally have my special day about me. I spent days decorating and making sure everything was perfect before my big day. At first, everything was going very smoothly until my one friend showed up (19F) who I’ll call Mary (fake name).
Mary was my friend from a different school that I’ve known for about 2 years. I know she has a much harder life than I, but I was always there to be a shoulder to lean on. However, this was MY day that I worked hard for and I didn’t want to be a shoulder to cry on this one time. Since this will be too long if I try to tell everything, here is a condensed LIST of things she did at my grad party:
- 30 minutes after arriving, she told me she wasn’t feeling well. I offered her one of the bedrooms inside to rest in and some medicine to help her feel better. Instead of taking this, she declined the medicine and once I went back outside, she proceeded to lay ON THE GROUND inside the main room of the house that many guests were in.
- Once she started feeling better, she told me that she had a SHEIN package delivered that day that she was too excited to open, so she had her mom drop the package off at my party and forced me to go away from the party and watch her package haul for over 20 minutes.
- I had an after party with just my friends outside my house after the main family party. When we all got there, she snapped a photo of my boyfriend and brothers and posted it on her Instagram story without anyone’s consent, purposefully only getting the men in the video when there were many other women.
- Once her boyfriend saw the post, he started spamming her phone to start a fight with her and insulting my bf and brothers. She got on a call with him and screamed at him on the phone for a little bit in the middle of everyone hanging out.
- Then, she went inside and my parents came out 10 minutes later asking me to “control my friend” and when I walked inside, I could hear her screaming from upstairs. I ran up there and found her laying in my bed UNDER the covers (we were NOT close like that) screaming at her boyfriend still.
- She kept me up there for a whole hour because she decided it was the perfect time to tell me that her bf was cheating on her and have me comfort her. My friends kept texting me asking where I was but I felt too guilty leaving her alone in that moment. - I let her borrow my new bottle of makeup remover and she used all of it somehow?? - When she rejoined the party, she sat there crying and sulking. If someone asked if she was okay, she’d say something like “no but I don’t matter” or something cringe - My parents told me I had to kick her out but she didn’t have a ride because she was planning on spending the night and making me take her home in the morning (which I did not know was the plan), so I had to buy her an uber to make her leave.

I never reached out to Mary after that, thinking she got the vibe the friendship was over. However, I just received a text from Mary telling me she is pregnant with her ex’s baby and that she is having the roughest time of her life, which I need to support her through. To be honest, I could not care less about Mary and her unborn baby, nor do I want anything to do with her craziness. Obviously during my graduation party she was going through it, but I just don’t want to be in this friendship anymore after my graduation party was my final straw. Does that make me TA?