Have a one on one with your son. He is old enough to understand how bad this would make you feel. It’s completely fine to look after your own well being first and I’m sure you two can find something else to do just on your own.
and let’s “put all the bad blood behind”
Fuck her cheating ass, figuratively.
Are we talking about the temperatures the freezer is freezing things down to, or the temperatures the freezer’s components are able to run at? Because those are two very different metrics and if it is the former, then that does not mean that the freezer’s components can handle those temperatures themselves.