First time I was called the n word

I grew up in a predominantly white area. There were very few minorities in my middle school. I was in 7th grade and boy crazy (as most teenage girls were). There was a boy that was half Brazilian, half white with a curly afro and I had the biggest crush on him. I had finally worked up the nerve to talk to him. We hit it off immediately and became good friends throughout the school year. The summer before 8th grade, he asked me to his house one day to hang out. His best friend was also going to be there. I was nervous as all I kept thinking was, this would be the perfect opportunity to get my first kiss. As I arrived at his house, his mother greated me with normal pleasantries. We went to go play video games in his room with his best friend who was already there. This was the first time I was hanging out with both of them outside of school. His friend left the room to grab snacks. We paused the game to talk for a little bit and he must have been as nervous as I was but then he started to lean in to kiss me. A moment before that could happen, his friend came back in the room. I pulled back quickly but it was very obvious what was going on. He had a look of pure disgust on his face and said "you were going to kiss a (n word)?!?" I felt my heart drop to my stomach. I thought we were all friends. I felt betrayed, angry, sad, and devastated. Before he could even answer, I grabbed my stuff and left. I walked back home in tears. I kept thinking, why was he ok with hanging out with me at school but the thought of someone liking me was so awful that he'd call me that? I didn't want the situation to be brought up at school when we started 8th grade so I stopped crying, walked inside my house like nothing happened, and never told my parents.