Why did this haplen to me?

I met this dude. N me being me. I didnt think shit of it cause i always think low of myself cause i know people are always judging me and i know im not much n shit and anyways meeting him i went there thinking after this this dude isnt ever gonna hmu after this. To my suprise he did a lot. After that. And we hung out alot like i spent the night at his house 4 nights in a row. Cruised with him till 4 am n shit like that it was awesome felt good. I felt kinda important i guess. Might i add this is the first dude ive ever gotten that far with.. considering im not even all the way out yet. Just to a few people that are important to me know. Honestly he was the first dude who i built a friendship with n shit. N then i caught feelings. N told him how i felt n shit. N he told me he wasnt looking for a relationship anytime soon due to him just getting out of one 3 months ago. N i was ok with it. I was fine being friends. We still did the Same shit everyday. But he always like confused me. He be like “i honestly find you so attractive, and its not even in a sexual way” n when he’d want me to come over it was to watch movies cruise n cuddle. Nothing sexual. Well we did a couple times but it wasnt like all the time or anything. So it was really bothering me n triggering my anxiety n shit. N then all of a sudden he just started getting distant. N i msged him and asked y. And told him if i didnt something wrong he cud tell me. Or if he didnt want to talk to me to tell me so i could move on n not keep... Hoping for something. N he reassured me that he was just not feeling himself and hadnt been talking to anyone recently so i let it be n then it continued he was distant n barely talked to me. At this point im deadass like sad over it im overthinking and crying n shit everynight n i just stopped texting him. N let it be. Told myself hell come around maybe hes depressed n doesnt want to be around or talk to anyone cas thats how i am. Well 7 days go by. N nothing. The 8th day i was getting advice from my friend n she said tell him how u feel. And everything. So i wrote this big ass paragraph telling him litterally since meeting him ive been the happiest person since like 2 years ago. N told him how glad i was to have met him n shit and all the little things i have it saved in my notes it was long and the most meaningful text ever. N i send it to him. But something was weird the imsg was green instead of blue... my heart litterally sank n sure enough. Blocked on imsg snap insta and facebook. N that shit fucked me up. That just happend 2 days ago. N i have no idea what i could have done to get blocked. N im honestly so confused n lost over it. I feel like i wasnt good enough or something. Makes me feel useless n shit. Idk. But yeah.. thats been on my mind all weeknd.