please help i don't know what to do and it's driving me crazy

SHUGAR

Well, me and my boyfriend have not been dating for very long and well he always tells me he loves me and want to be with me forever and that I am the best thing that has ever happen to him he is just very nice u could say every girls dream. Well i always wanted a guy like that a guy who would tell me he loves me a guy who would listen to me and when i am hurting he is always there for me. Now that i got that i am acting very strange it's like i hurt him i say things to him that i shouldn't i am just mean to him like i play with his feelings like today i told him i cheated on him but i didn't i was just playing i just wanted to see what he would do and well he got kinda mad and then when i told him i was playing then he told me to stop playing with his feelings. I feel so bad he is so perfect and i just cant stop playing with his feelings and start arguments with him i like him a lot you know and don't wanna be with out him. He is the first guy that has ever treated me so good and told me he loves me none in my whole life no guy has ever done the things he is doing for me. And i am being such a bitch to him i don't know why i do it why am i trying to hurt the guy i think i am falling in love with. I always say mean things to him and last time he even said Kim if u don't stop all this that you are doing the love i have for you is going to slowly go away. I don't want that to happen. Like he tells me he loves me and i say whatever and sometimes i say i love u too to him but then sometimes i tell him that i don't trust him and i don't like the way he is and he needs to change i don't know why i am doing that. I love him and he loves me i have never done that to any other guy i have been nice to all my ex boyfriends. And i tell him i will stop but always keep doing and saying things that i should not. I am so sad i have been crying cuz i don't know what is wrong with me i love him so much n i am like that please someone help me i don't know what to do anymore