Baby name drama

So my cousin and I are like sisters. Been close our whole lives. I have three children (one is a newborn) and we haven’t talked since the day before my youngest’s birth. When I was pregnant with DD1 three years ago and found out she was a girl (my first baby is a boy) I was so excited and excitedly wanted to talk baby names with my cousin who at the time was my very best friend. I already new the name I wanted to use, it had been my favorite for years. For whatever reason we had never talked about our favorite baby girls names before so I thought nothing of the name I had picked out other than I LOVED it and it was THE name I wanted for my daughter. So for whatever reason she shares her favorite names first (let me just say she isn’t married, has no kids and doesn’t plan to have any in the near future). The third name she mentioned was the name I chose so I stopped her and kind of laughed and said “great minds think alike because that’s my favorite baby girl name and the name we want to name this little one”. I was absolutely blind sighted when she was furious, told me that was her baby name and if I used it she would never speak to me again. I told her it had been my favorite for ever and she said she didn’t care and if I used it I was dead to her. So what did I do? I didn’t use it. I picked a different name. Our friendship never really recovered from it. I resented her for not “allowing” me to use her name I so adored all because she wanted to save it for the imaginary daughter she may never have. So back in December (after three consecutive miscarriages) I found out I was pregnant again. I was ecstatic. My cousin and I were on semi good terms again so I called her and told her and she acted mad? Told me congratulations but I’m an angry, jealous tone and very quickly told me she had to get off the phone. It was weird but whatever at that point I was so happy her negativity couldn’t bring me down. At 10 weeks through a genetic blood test I found out I was having my second daughter🥰 I was SO excited. I instantly new I wanted to name her the name I passed up on the first time but felt I couldn’t because for some reason I was afraid of upsetting my cousin. My whole pregnancy my cousin and I would make plans to hanging out (I’d say around 15 times we had plans) and all but 1 time she blew me off DAY OF giving me asinine excuses like she couldn’t leave because her brother was home (she’s 32 and still loves at home with her parents) or she had to hang out with her grandma🙄 again whatever I was on cloud nine and nothing as bringing me down. So around week 29 when she hasn’t stuck to one of our planned hangout times I decided that I’m tired of sacrificing my happiness for hers when she clearly doesn’t care about mine and my husband and I decided we were using the name. We got stuff personalized for baby girl and I was SO excited I was finally getting to use my name. So a couple weeks before the birth I find out I’m going to be induced. So I tell my cousin this and she offers to take my older kids while I go to the hospital. My husband and is parents live out of state so I agreed so my husband could be with me. I begged her not to blow me off day of because this was so important. What did she do? Waited to call me 30 mins before my scheduled induction time to tell me she just left her house 3hrs away and was going to be late. I was so upset and told her not to come. I had to drive myself to the hospital while my amazing friend from work got some things in order to come stay at my house and stay with our older kids so my husband could be with me. She arrived within 45 mins so hubby was back by my side within the hour 🙏🏻 my cousin then had the audacity to be mad at me and told me my husband and kids should have waited for her in the parking lot of the hospital until she arrived 3hrs later and I was being difficult? I just stopped responding to her so I could focus on giving birth. So my daughter is born the next morning and she blanks me. She has her mom text me to ask what the baby’s name is so I tell her and apparently she’s so pissed off she’s been talking shit to our whole family saying I “stole” her future daughters name vindictively because she was late picking up my kids for induction? And I did it last minute to spite her🤦🏼‍♀️ So I send pics to her mom of the personalized stuff we had made MONTHS in advance and it’s been radio silence since. My daughter is now 6 weeks old and she hasn’t said anything to me. Am I wrong to have used the name? I keep going through stages of feeling guilty but I’m so obsessed with my daughters name it’s just sad there’s so much drama over it😩