I'll try and keep this short. She is my father's best friend/uncle's wifes niece. There is therefore no blood whatsoever between us. I do however come from a culture that puts a big emphasis on family. I just moved away from home to a foreign country for school and she's the only 'family' i know in this town. We were never close but trying to be seeing as we are alone away from home.
My classmate also lives in the same building as me and he is a drug obssessed. Goes through atleast 2g of weed a day, always high or trying to get high, does coke and codeine. My cousin also smokes but occassionally. It started by him coming out with us despite me saying no to my cousin. Then she invited us over to her place and they were texting each other in the same room. Next thing she's passing by to see him to say hi before work last sunday.
I ignored the signs at first because i thought she was just messing around with him (his parents are loaded, talking millions). Now he tells me he likes her and that i shouldn't tell her he does the hard drugs. I told him not to do anything with her because she's 4 years older, has a DAUGHTER and needs someone ready to settle down with. When i ask him about her he claims nothing is happening and that they just talk. Yesterday he shows my other friend her bra. This friend told me, and thinks he's an ass so imagine how stupid i felt.
Truth be told he is clingy (calls every hour, won't go to class without me, and begs me to keep him company while he smokes even though i don't), thinks he's the sh1t etc. However he is a laidback, cool guy (if you don't live with him) and i chill with him just to get into different social scenes. Don't know whether to be pissed with her for picking such a guy or him for not realising that this was going to fark up our new friendship.What should i do?