AITA for refusing to babysit my nephews bc their parents didn't invited me to their wedding?

I (17M) have an older brother and sister, both in their mid-twenties. My brother got married 2 years ago. My sister got married 3 months ago. Neither one invited me to their weddings. <br><br>I was pretty upset when my brother didn't invite me. I didn't go to college, I started working to help mom and pop with their small restaurant. I help them with their restaurant because neither one of them are good with technology and social media, so I'm their tech support as well as staff and I'm always there to help with whatever they need. <br><br>I was hurt when my brother didn't invite me to his wedding. Part of me thought it was because he either A, forgot or B, it was a small wedding. I didn't want to make a big deal out of it. I didn't want my parents to be upset that's why I didn't brought it up to them. I just let it go. <br><br>But when my sister didn't invite me, I asked her why. Then she admitted that her and brother made an agreement not to invite me bc they think I'm a bad influence towards their kids. I'm the uncle every kid wants bc I Spoil them, play video games with them, take them to cool places to hang out, I bought them really awesome Birthday presents, etc. <br><br>I was really hurt that they thought of me as a bad influence towards their kids. I told them:<br><br>"I'm not an AH for the way I decided to raise MY kids the way I want to. Just because you both don't approve how I live my life or how I spend my money, doesn't make me a bad influence. I'm not a bad influence just bc I spoiled my nieces and nephews or I took them to cool places. I'm just an uncle who likes to Spoil his nieces and nephews." <br><br>Then I told them:<br><br>"I'm not going to help you two anymore. From now on, I'm going to distance myself from you two and your families. I'm not going to help you two anymore. So don't expect me to babysit your kids anymore. I'm not going to Spoil your kids anymore. I'm not their Uncle anymore. <br><br>You two don't have to worry about me being a bad influence towards your kids. I'm not going to be around your kids anymore. You two can keep your kids away from me."<br><br>I walked away from both of them and that was it. <br><br>It's been 3 months since my sister's wedding and I haven't seen them or their kids that often. I usually hang out with my friends and my cousins. I usually help out my parents and my neighbors. Sometimes I help out my other siblings who are 15, 12 and 8. I've been focusing my attention towards them instead of my brother and sister. <br><br>Sometimes I would help out my aunt and uncle with their cat. Sometimes I help out some of my other aunts and uncles. Sometimes I would Spoil my other cousins. <br><br>So far my brother and sister and their spouses have been respecting my boundaries. I don't go to their houses, they don't come to my apartment to hang out. Their kids would usually see me at grandmas house during Sunday dinner. Sometimes I would give my brother and sister a glare glare stare whenever they try to talk to me. <br><br>Last week my sister called me, asking if I can babysit her kids this weekend for a few hours so her and her husband can go to a party. I told her no. Then she said: <br><br>"I know you're mad at us bro, but your nephews missed you. They've been asking about you." <br><br>I told her: <br><br>"I'm not their Uncle anymore." <br><br>Then she said: <br><br>"Yes you are. You're just upset right now." <br><br>I told her: <br><br>"I'm not their Uncle anymore. You two saw right through me! You two saw that I'm a bad influence towards my own niece and nephews! You two don't want me around your kids anymore! I don't have to babysit them anymore. From now on, I'm going to be the Uncle who gives them their gifts on their birthdays and that's it." <br><br>Then she said: <br><br>"You're an AH for this! We just didn't want you to Spoil them anymore!" <br><br>I told her: <br><br>"I'm not an AH for not babysitting your kids anymore. You two were wrong for not inviting me to your weddings!" <br><br>She told me: <br><br>"You're acting like a 10 year old. We didn't invite you to our weddings bc we thought you would bring a date and we didn't want our weddings to be awkward!" <br><br>I told her: <br><br>"That makes no sense. I was 14 when your brother got married and 15 when you got married. I was a minor and I can't even date yet." <br><br>Then she said: <br><br>"Fine! Your an AH!" <br><br>And she hung up on me. <br><br>Now I'm wondering if I'm really the AH for refusing to help my sister.