My chest hurts, got elbow'd to the chest!?

On St. pattys day, I got into an argument with my boyfriend. He was way drunk, and shoved me into the sofa with his elbow. It's now a week later and it still hurts to sleep, to breath, to move my arms a certain way. He dug into my chest plate right in the middle. There's a little bruising on the outside, but it hurts real bad. I wake up in the night because it hurts so bad. Could I’ve a cracked chest plate, or does this sound like bone bruising? The boyfriend is gone, by the way.

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Answer:
it sounds a bit more than bruising i'd get a x-ray done just to make sure there is no chipped bone, my bf cracked his rib on the side though, had same problems as you took around a month to be ok but had to let it heal on its own.