What can I do so that I don't feel so embarred? What shld I say/do when I see him?

There's ths boy tht I like n we have liked each otha 4 over a year nw n wen we see each other thngs always go well n thn they strt to go wrong n we end up arguing for all diffrent reasons. I hadnt seen him proply for 3 months becos I have finishd school but he hasnt but we had been tryng to make it work b4. I went to the shop n he was there n he strted speaking to me n I let him in with his frend. Thngs were goin well n I really 4t tht I knew for sure that he liked me. Howeva, I jst wnted to speak 2 him by himself n he wldn't do it. He said we cld speak about anythin as long as 1 of his friends were there, I said no n he said that he wld never speak to me again. I textd him on Monday sayin that I wnted to mke a go of things n stop arguin, thn his frend tht likes me told me he had a gf nd at first i was furios bt my frend thnks its nt tru becos he is nt an outgoin person. I called to find out but he wldnt speak 2 me n I spoke 2 his cusin insted I can see y he wld lie abt havin a gf