Help with my shamrock plant?

Ok, so a couple years ago my grandma gave me a shamrock plant. One with white flowers on it:

http://trendspic.com/the-shamrock-plant-garden-blo...

One that looks like the one in that picture.

It was doing well for the first two years I had it. Great actually. I was worried because my apartment doesn't get any direct sunlight (all of my windows face North). So the leaves and flowers were always leaning to one side (to get sun) but it was blooming a lot and I tended to rotate it around.

However, this Winter it was super cold. We had our curtains closed and folded up under themselves to try to keep the cold air out since our apartment doesn't have good insulation. My shamrock plant was on the windowsill though. We had temperatures outside that were down to -30 degrees F and I totally spaced and didn't even think to take my plant out of the windowsill and into the apartment. So it was up against that cold window all the time.

I remembered about it one day and the leaves above the soil were frozen and began to fall right when I brought it into the apartment off the sill, I touched the soil and it seemed frozen. It's not a large pot so I'm almost sure it was frozen solid. However I have checked the 'bulbs' or rhizomes or whatever they're called and they are not mushy..they are still firm.

If I start watering it again this Spring, will it come back or should I just get a new one? It's the first house plant I've ever had.