@afternoonnapqueen
I'm in tears over it all he's saying I've ruined the day because I've got in a mood over it all. God I hate him so much! He's trying to say he was preparing me for the call.
AIBU to think this isn't funny or am I just too serious
There's no such thing as the 'right' level of how serious a person should or shouldn't be. You are as serious as you are, and that's the end of it. It can't be judged in terms of (un)reasonableness - it's part of who you are. Get hold of that. Whether you find something funny, entertaining, stupid, rude, mean, complimentary, insulting, abusive, childish, etc etc, is up to you. If anybody tries to tell you you are wrong to feel what you feel, they are not letting you be who you really are. In this instance, he's even going so far as to say that you are 'ruining the day' by being in a mood, whilst overlooking the fact that the reason you're in a mood is because he ruined your day first. Clearly, that is an irrelevance to him.
It seems your feelings count for nothing.
But if he is disrespecting your feelings, you must start to respect them yourself. Your post is asking, really, is it OK for me to feel how I feel, or should I try to shove my feelings to the side, ignore them, silence them, surpress them, minimise them, pretend I don't have feelings at all?
Never ignore your feelings afternoonnapqueen. If you feel something, feel it in full. Feel it altogether. Share it, and stay away from anybody who tries to correct it. Your feelings are who you really are, they are the real you, the strong, brave, loyal, courageous you who stands up and says 'Hey, you arsehole! I've told you I don't like your jokes. You stop, or you leave: Got it?' It's easy to tell that she's there; she's the one who posted.
She is afraid to speak out strongly, though, because you don't have faith in her. She will always be right, though. Let her speak. She will be the one to guide you into a better relationship than the one you have with this pranking, giggling schoolboy, and into a better relationship with yourself.