So things have progressed, my bfs son turned 3 in september and now I guess i expected some change but nothing so crazy. My bfs son has taken things to whole other level of wanting to jump out of a window to not have to deal with him. So I never liked to spend the night at my bfs house when he has his son even though we did it from time to time but I was moving out of my home recently and needed a place to stay so I decided to stay there since my bf said it would be okay. Now me and his son usually get along, i love to play with him and everything but he had been a bit fussy all week already yelling and crying constantly. So we were at his house and it was time for him to take his bath to go to sleep for the night and it turned into a nightmare. My bf asked me to do it so I told his son "okay, time for your bath and then night night" and he yelled no and I told him he had to becasue daddy said it was time and asked him to please come to the bathroom when he was ready. I turned on the bath and everything and when I came back for him he started kicking, screaming and just full on crying and sobbing. I felt bad but I grabbed him and took off his clothes and placed him in the bath where he started splashing the water around as he kept the tantrum up and i told him no but he wouldnt listen. Eventually my bf came in and i told him to please take over and I left because I was beyond overwhelemed, but when I came back he was still going and going and it wasnt stopping. he was trying to make himself throw up by sobbing dramatically and trying to stop his breathing so we had to keep grabbing him and blowing in his face for him to breathe better. Then my bf layed him down hoping hed calm down and it got worse as he would kick and scream and finaly he calmed down when my bf gave him his bottle, which he was suppose to be taking away. So finally at the end of the night when we layed down I had told his son that after the cartoon he had to go to sleep because I was turning off the tv, so i did as I said and he started screaming out saying daddy lay down with me and lay down and my bf said no you have to sleep and he started throwing a tantrum and got out of bed and hitting the floor and i had no clue what to do so i picked him up and layed him down but he hit me in the face and i was shocked i wanted to just snap but instead I walked off and into the bathroom where he could deal with him and when i came back he had layed down with him and they ended up sleeping together which he never did before even when I was there. so now I feel like the kid sees me as a competition but I dont know how to handle it cause he keeps doing it over and over again and my bf doesnt notice or just gives in even when his son is telling me to shut up or saying curse words at times. I dont know if im over stepping my limit by helping but I want to be there for the kid, i adore him, but maybe he doesnt want me around and I should leave because he'll always be first and ill be second.