Keep seeing my boyfriend "active now" on Facebook but he doesn't reply?

His dad is down for the holidays so obviously he wants to spend time with him and he told me he just wants to be with his family these holidays BUT I keep seeing him go online on Facebook and it's really annoying me because I just want to talk to him but he won't open my messages and reply?? He keeps going online too and I feel so ignored so I just spam him and then he gets annoyed so I don't really know what to do 😔