Bedbugs!!!!

So ive always bought used furniture off craigslist and recently just bought his gorgeous sectional, well after a week of having it. I realized my arms and legs look like peanut pattys and I started digging around in the couch and saw that there were bed bugs..... I am absolutely livid. I contacted the seller and she just sated oh well, we've never had them and if they came with the sofa what took you so long to notice! ..... Needless to say I want to just toss the sofa before they try and spread, because I'm now having an allergic reaction to the bites and I am absolutely miserable! Hubby doesn't seem too shocked because he doesn't have any bites. So I'm considering pushing this thing out of our townhouse before it gets worse or something