Something happen ugh

Ok last weekend it was my birthday week and the guy that I talked to told me he was coming to see me on Friday. So hours past and he didn't text me or reply to my text. He posted a video working overtime, cool I thought he was busy so I didn't bother. So Saturday night I went out with my friends to celebrate my birthday and I kept putting snapchat videos and when I looked of who views my videos and obviously he looked at it . Ok so Sunday came and didn't even get a phone call from him to say happy birthday nothing. So I hit him up last night to ask him is everything okay and he ignore my text and later on he posted a snapchat with a random female ... I was so confused I ask myself we were fine on Friday wtf happen did he do it on purpose because I went out? Smh i don't understand