Is this normal for a girlfriend to do?

my girlfriend made me wear a remote control key lock shock collar she bought off of ebay.it really hurts and she just said she wanted me to try it out.but then i did and i asked her to take it off and she said for one day.i really didnt want to.she made me wear it everywhere and everytime my friends were to act childish she would shock me just for being around them.and she made me do everything she wanted and when i said no she shocked me until i started crying.she eventually took it off but she hugged me abd said thank you and after all that i couldnt do anything to her because i love her and i dont want to hurt her.but i just feel she doesnt feel the same way about me