Did he blow me off or am I overreacting?

I've been seeing this guy for 7 months now and we usually see eachother every weekend once a week and he's usually the one to initiate contact to meet up. He wanted to see me last week but something came up that he had to handle so he said he wanted to hangout another day which i was ok and understanding about. This week on new years day I decided to see if that night would be ok to hangout and he said he would let me know if he could/had some time since he was currently on his way to his uncles for dinner and he would text me in an hour (this is around 8pm). So basically he never texted me back but viewed my message and its the next day yet he's actively checking my social media... im really disappointed and confused but im also not sure if im just overreacting since he's usually very open and honest with me. should I give him time to reach back to me. Help?
Did he blow me off or am I overreacting?
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