Relationship / Story

I'm 15 and I like this boy that's two years younger than me.. I feel so upset that I can't really tell anyone because he's kinda like family.. We are not really related because it's part of my aunts family and my uncle is the only one with our blood so not related.. So one weekend my uncle asked me and my sister to go camping with him and we went so since my aunt went then that ment that her family went too, that included this boy. Well we went for three days and the third day we came back home and so my cousin gave me his snapchat and so we started texting, long story short we started "dating" one month later he said that long distance relationship ain't good (he is lives 20 min away from me) and I was sad and agreed then we "broke up" and I still have feelings for him and idk about him for me. I haven't seen him for a while now and every now and then I think about him and I just get sentimental... There's deep details about this story..