Am I in the wrong? Please be honest.

I know after friends move away people start to grow apart and they change. Heck, I even changed. I'd like to think for the better. Anyways, so my bestfriend invited me to hang out with her like a year ago and she stood me up. In detail she told me she was going to come get me (I understand she's not obligated  to take me anywhere) but if she wanted me to go that bad she would've came and got me. She had me waiting for hours on her. She didn't even call to tell me she wasn't coming. She never apologized and I saw past it because I thought she didn't mean anything by it. Next time, she told me she was busy when made plans months ago. She stood me up again. We actually had this day planned and I understand ppl get busy. Sometimes I get so side tracked I don't even have a social life. She invited me to her grandmother's party recently and my brother said I shouldn't go he even told our dad I shouldn't go because I was stood up not once but twice. They both made me feel bad. They said and I quote ,"why are you still following behind her ? She stood you up plenty of times! And you need to realize ppl change and they're not always the same!!!" I even tried to defend my friend in the argument with my brother and father and it looked like I wasn't winning 😕😔 I feel really awful. So I called her back and told her I couldn't come. I was going to go because I'm not like that and I don't always hold a grudge and give ppl second chances.  Idk how to feel I don't have many friends anymore. I've had ones who have deceived me and stab me in the back ,but I've let them go to better myself. I think it's really funny how ppl treat you a certain way but wouldn't like if you've treated them like they treated you.  Idk I guess I'd rather be alone and have God and family and that's all I really need. Idk 😐 but that's the story of my life at the moment.