Can someone dislike you then like you because you changed in looks and attitude?

i change all the time i don't usually care what my freinds think unless that's my attitude.some attitudes they like some they don't,infact I'm planning on dying my hair and try 2 b more mellow,but my real freinds hang with me all the time no matter what if they don't, i don't care but i like it when they do. but yes they can dislike the new u but true freinds won't care.