Am I overreacting?

My boyfriend and I have been together for six years (long distance, but suppose to be getting a place soon) today he was acting really short with me in the morning and then went all day without talking to me, he texted me twice throughout the day and I told him I was upset and he just basically said he is busy with his friends. It’s now 2 am and I haven’t heard from him but he is posting on snap and I am very upset. What would you do.