I'm watching SH for the first time, and am somehow now up to season 5 - the COVID one. I am NEVER one to side with the boys, but Amanda is SUCH hard work. She is slightly more tolerable in this season than in the previous ones - so far at least - but I've not liked her from the start. Yes, Kyle cheated on her, but she decided to stay with him, so either get over it or get out of it. She was totally holding it over him in S4, after agreeing to marry him. Yuck. Kyle also showed you who he is - a party animal - and as far as we saw, he wasn't vowing to change his ways. So again, get over it or get out of it.
Paige is pretty unsufferable with Perry - season 4 they had been together for two months I think, and she was all "I love you" etc, but freaking out about getting married. It has been two months, and you're clearly in different stages of life.