to love somebody

Completely hypothetical situation: Your best friend suddenly made new friends and was hanging out with them almost every day and stopped inviting you to hang out and when you brought up to her in a honest and vulnerable way that you felt left out and like you were being replaced, she told you it wasn't like that and that she just forgets to invite you, when that was never the case before she made these new friends. So you explain that to her and ask if you can be invited, and she tell you that you should just ask to join when everyone is hanging out and you agree to do that as long as she also invite you sometimes too because you'd like to feel like you're wanted. And then a few days later when you boot up a game and see that everyone is playing, you're going to go and ask if you can join but as soon as you get on, they all get off before you get the chance and that makes you feel like shit so you admittedly reacted out of hurt instead of taking a step back and assessing the situation and you later apologize for it because you know that it wasn't the right way to react to the situation. Then you're both trying to talk to eachother about things through text but she eventually leaves you on read and doesn't speak to you for like 5 days and then messages you that she hates fighting with you so you both decided to talk it through on a call but she can't do it at that time so you make plans for about 3 or 4 days later and when that day comes, she messaged you at a time she knows you're busy because you're busy at that time every day so you try to compromise the time with her and she says she doesn't want to later that night so you propose any time after you're free (earlier in the day) and she says that she can't because she agreed to something and is busy then (she agreed to it after you both agreed to talk that day, a few days prior) and asks "how long is this conversation going to be anyway" which makes you feel like shit because she's making it seem like such a chore to try to mend things with you (which she never had done in the past. Every other time y'all needed to talk about something, she'd give you her full attention and made sure she had the time for you) At that point you're just exhausted and hurt that she can't even give you an ounce of her time to work things out and you both start arguing and it ends with her telling you that she doesn't want to be your friend anymore and unfriends you literally everywhere. Would you be justified in your feelings and for sticking up for yourself or did you fuck up because you overreacted and just can't see that you're in the wrong? (Which like I know there are two sides to every story so I know that no matter what, I'm not completely faultless) Honest answers only. For science.