A roll of duck tape is cheaper....and you can get multiple uses out of it...
She can save that for patching holes.
However, that takes the 'warm' out of a drysuit. I was shivering by the end of the day in an 80o pool since we all stood or sat in the water to prevent overheating.
If you're that intolerant to cold, ditch the Fusion, get a CN suit or something similar thats warmer and isn't as difficult to manage the bubble in then add a suit heater to it.