Fly trap check up.

Today when I looked at my Venus fly trap that already had a mouth has died. I believe this happened because chase (science teacher) tried to close its mouth while it was being fed. It has gone down in size because it shriveled up it is now 1cm long. My other Venus fly trap is doing great it's getting bigger and is now 7 cm long the second fly trap that grew next to it is now 5 1/2 long.