Help please

Hey guys. So, sometimes my cousin will ask me to spend a night with her to help her around the apartment. She lives with her 8 month old child and her boyfriend. When my cousin is not around, her boyfriend takes this as his opportunity to "get his hug." Also, when my cousin is not around, he will try to play with my hands and feet. Recently, I dreaded spending the night and nearly lost my mind because I wanted to leave, but I had no way to get home. So to avoid him altogether, I took a nap. I woke up and it was completely dark in the bedroom and still groggy, I looked up to see him standing over me (I was sleeping on the floor in the baby's room). He asks if I'm okay and I reply yes and he says "you didn't even give me my hug. You gonna give me my hug?" Mind you, I am extremely tired and I can barely see anything. He hugs me for a minute rubbing on my back and arms, and I lay back down and start to fall back asleep and he starts trying to play with my feet. I pull them away and he sits down and pula my legs between his and starts rubbing on my feet. I fall asleep hoping that he left me alone, but I soon wake back up and I feel something else (besides hands) ...I'll leave that to your imagination. I immediately wake up and pull my legs away, get up, and go into the bathroom with my cousin. I have told this to my bestfriend and she says that I should tell my cousin but I am afraid and I feel like I may be over exaggerating because I was tired and could barely process what was going on.