Is it bad for me to do this to my ex?

[Sarah]

So me and my ex was together for about 7 months before I broke up with him. He was a liar and a cheater. Like 6 days after we broke up he got a girl. Two months past by he texts me then re follows me on every social network and because I turned him down he then unfollowed me on everything again even deletes my number. I'm mad because I gave him everything! I was nothing but a good gf to him never cheated or anything and he knows that. Well his new girl everytime they break up she begs him for them to stay together, now realize she does know he has cheated on her with other girls. He never unfollows her on twitter but with me when we was together he ALWAYS unfollowed me. When we was together he gave me the password to his twitter account I don't think he remembers anymore. Anyways like I said I'm mad and I want to unfollow everyone on his account because of how he hurt me. Is that wrong?