No, but you need to fix the problem quick. Well either that or realize that people do change and it might be time to move on.
it means nothing important in mu opinion
Yup time to move on...
It means you changed . Wether he likes it or not it's all in his tone
they mean that you changed from the person they knew to someone who is new. She probably didn't know you changed for the better. she doesn't want you to leave.
Sounds like the pre breakup stage