Him part 1 in Stories of my life... literally

So, this is gonna be part 1 of my series . My current boyfriend and I (we can call him Josh) have been together for years (I’m 19 he’s 20). When we first got together we were really young (like 12) and it only happened because at the time everyone was dating everyone. I have absolutely no idea why but I have always felt attached to him even when I knew he didn’t care about me. Anyways, we were in middle school and relationships were not serious at all (even though at the time they did seem serious..haha) So as a young preteen/teen he flirted around with girls and was a player. He used to flirt with me and tell me to come over and I had no idea that he would do the same thing with other girls… a lot of other girls (including my friends) and I would act like it didn’t bother me or i acted oblivious to everything because he made me feel special and didn’t wanna believe what anyone else said. There are so many things I remember that I wish I would’ve reacted to a long long time ago. I had a best friend named Cece. Well Cece and my boyfriend had known each other for much longer than i knew him. They always flirted and even though she knew i liked him she always flirted with him and used him for random hook ups. Eventually me and him got together and were on and off and hooked up but one time he had made me feel like absolute shit. I had been to his house many times before and his mom got home at 5 so i always had to leave before than but this time me and him fooled around and I’m not sure if he had a gf at the time but we fooled around and after we were done he just sat there smiling and said “my moms gonna be home soon you should get going” and this made me feel like shit. So I left, cried and even though he sent me a text I didn’t speak to him for months. In those months he would message me saying he still loved me and cared for me and would tell me he’s not over me and I left him on read and never responded. Months went by and his grandmother died. I felt bad and told him i was sorry for his loss. He said “thanks, it means a lot coming from you” and from there we had talked again and he was still with his gf and eventually we ended up talking about being together but I told him that if he really loved me he should break up with his gf and he did. Things got “serious” after that as we started our official relationship. We were in the 8th grade.