HELP ME PLEASE!!😩

So I met a guy at the mall ( February)and he asked me for my number and I have it to him, so we started talking and two weeks later he texted me and asked if I wanted to hang out and I said sure so we hung out and he was my first kiss. After that I started having feelings for him and I told him I liked him (May) a few months after that night and the only thing he said was "oh really", then a week after that I guess he got a girlfriend and he would always send me snapchats of her and him and I had enough so I blocked him and we had in a huge argument about it so we just blocked each other on all social medias, I was heartbroken, I went to school the next day and I was a mess, but then I texted him on the 2nd of last month( June) and said I was sorry and we forgave each other. So we talked a lot after that (like everyday and every night) and on Friday night we hung out and we had a little make out session and he kept grabbing my hand to make me grab his dick and ask me if I would give him a hand job and I would pull my hand away then he kept asking me if I would give him head and I would say no and he would say "why not, give me one good reason" and I would say because I said no (he asked me if I would do it literally 15 times) then my sister texted me and said we had to go, so we walked back to where my sister was and he looked mad so I asked him what was wrong and he said nothing, so that night I texted him and said you looked mad when we were walking back and he said a little and I asked why(even tho I already knew) and he last me on read so I said sorry then he Left me on read again, it's been 5 days since that night and we haven't talked at all, I've cried myself to sleep every night since that night because I feel so stupid and used and ashamed in myself and I don't know what to do right now😞please help me ( i know it's long, sorry)