Is it normal to be someones pet ?

I use to have a friend he was my best friend people said I followed him like " a little lost puppy dog " I would do anything he asked as I only wanted to please him . he called me his " Pet " and I gladly wore this title and he was my Master . at the time most of my other friend treated me like dog krap and he was the only one decent to me . However he called most of my other friends " Fuckbuddys and went around calling them that " they took it as rude and insulting . He never called me that I was just his loyal pet his loving follower that would follow his every single whim . I always thought Fuckbuddys was a disrespectful term ? This was a long time ago I was in 8th grade . This was the first time I kind of liked someone I had not liked anyone before that and had found relationships trivial and illogical but he was the nicest person in my life on top of no one approving of him neither did my family of being friends with him . all I had gotten was negativity in my entire life but he would only ever tell me nice things . I would have done so much as Jump off a cliff to my death if that was his wish . After the 8th grade he moved and my world fell apart my life was a downward spiral till the end of high school after that . I was insane for a short while because of that but I dealt with it and I am very different now . I never thought of my self as anything more than his dog honestly in my mind I was just his little slave to do his whim . My friend had told me this was a type of worship ? I do not agree with that have anyone else had the same type of relationship ? its not the lets do it doggy style in the bedroom its more like a lifestyle choice not a bedroom sex thing.