Im Dating my friends ex.

well my best friend use to go with a mark and well their relationship didnt work out so then like a month later she went out with someone else again. before the mark. && so I started to talk to mark as a normal relationship friends and I dont know during the time my boyfriend told me he thought I was pretty. so then I was blushing and my bestfriend told me why dont you go out with him && I told her several times are you sure. well you have a boyfriend but still you know. && she was like that doesnt matter go with him and so I took her word for it and we are going out. && all of a sudden you know she starts getting all mad and stuff and constintley trying to get me jelous or somthing. && one day she just told me oh it was a test and I was like what are you talking about and she was like oh about you and mark why did you do this to me and she said that one day he drugged her and tried taking advantage of her and I was like but why di you take his drugs I mean im not going to make the desicions you made. && she got all mad and stuff and said that she can stand us being together. && I was like well why in the world do you give me these “tests” becuase she knew that I really wanted a boyfriend. and we stoped talking. I dont know what to do I mean people say the right thing is to break up with mark. but I just cant its just to heard she told me a week later and I really like this. mark. && he too told her if it was okay.’ I mean I love my “ex” best friend. but I really like him. and we want to be together. for us its like he had to meet my “ best friend” to get to know me. I dont know we are taking things seriously. I want him but I want here. too. I dont know I just cant let go of him. its too hard. if you were in the postion what would you do? its okay if you say somethign mean I justw ant you to be honest. :/