Should i kick him out?

ok im jackie im 17 and im madley in love with my b/f bruce. but i have a major histor with this guy jsutin and i think im might still have feeling for him. so justin showed up at my door like five minute ago and said he got kicked out of his house and asked to stay with me i told him i dont know cas i dont think my b/f would think he said jackie im not here to do anything i just need somewhere to stay so i said he could sleep on the couch we were talking when he told me he loves me and i told him i cant do this so i went to my room and called my b/f but for some reason i couldnt tell him about justin what should i do im afarid if just stays something will happen but i dont want to leave him on the streets what should i do