Feeling down

I'm going away for a few days for a city break cause it's my birthday Sunday and I'd been seeing this guy but he started ignoring me. I'm not gonna let myself be treated like I'm an afterthought by him (especially as I chased him twice stating how much I liked him and wanted to give us a shot) but now I just feel sad because I'm literally alone, I'm going on holiday alone, my best friend hasn't remembered my birthday and the guy I started liking is ignoring me. So I'm gonna be sad and alone on my birthday 😔