The key question is, is the nib cracked, and they often crack at the base right where the nib disappears into the section (the part of the pen that holds the nib and the feed, which is the black thing right under the nib). Sometimes you can't see the crack, but if the nib is moveable with little pressure, it's probably cracked near it's base. If it doesn't move easily, then it may be bent, but that's less common because the curvature of the nib does a pretty good job of preventing that.
Again, fixable, but not really worth it for a pen of this caliber or this common. Replacement would be best if you still want to salvage your investment.
And, sorry to say, it was most likely it was cracked because of undue pressure put on the nib to try and flex it. Sorry. Wish my news was better.