And if they voluntarily comes to her and tries to bully her inexperienced innocent husband just for fun by making him feel humiliated in front of them, then what should she do in that moment?

Hi there! I just wanted to get some feedback/tips on what it is like being a maid of honor with someone else. A little background is my sister is getting married and she had previously gotten married before. When she chose a maid of honor, she chose the grooms sister over me which really hurt my feelings. Now she is newly engaged to someone else and she ended up choosing someone she hasn't known for long as her maid of honor over me. This really hurt me because this was the second time she had done that to me and I had always thought we really close. I completely understand this is her wedding and her chose but it just really felt like a slap in the face and just made me upset. I communicated to her how I felt and we got an argument but then she came later and said she was willing to let me be a maid of honor with the other person she chose. I told her I would think about it because I didn't want her to feel like I was forcing her to do that but she assured me that it was her own choice. Now it's not that I don't want to be maid of honor with the other person, I was just worried if we disagreed or clashed head on things that it might cause stress on my sister. I also just didn't know how it was having two maid of honors or what to expect. Any feedback is helpful and please no negative/rude comments, I really don't have time for that.