I"m sure it's not as bad as you might be thinking it is. Often, our views on things are heavily distorted. What our mind is telling us we often take as "right" because after all, it is in our minds. Try and look at the situation from other points of view though. Just take a step back and relax for a moment.

Your mother is your mother. So unless the woman is impossible to talk to, i'm sure she will calm down to a point where the two of you can talk things out.

As far as the boyfriend goes, I'm not sure exactly what the situation is there. Maybe take a moment to evaluate why you said that to him and maybe try and explain it to him once you get things figured out.

The best thing I can say is, try not to see these things as too dramatic, because 99.9% certainty tells me that they will work out for you, maybe not immediately or the way you hoped things would, but it will work out.