No Off Season...for dads

My car needed antifreeze!  It only needed antifreeze!   I feel somewhat silly and very much blessed that this was all it was.  Let me explain. Thursday.   I was racing out the door to get to work.  I hopped in the Acura, turned the ignition, and got nothing.  I tried it again and again, and I got nothing.  Frustration.  Friday.  I get it jumped and it seemingly runs.  I was advised to let it run for about thirty minutes to let the engine recharge.  After about five minutes the car's RPM meter began jumping from 2 to 1, up and down, up and down.  Then,  it began to overheat.  I 'm began to freak out because I don't know what to do.  Saturday.   I get the car towed to my mechanic in DC.  I am chatting with the tow...truck...man (???) about everything from his cars to his children; he has eleven.  We got to the mechanic and he looked at the car.  He told me to crank it up. Once again, the engine began revving up and down.  I was almost sure that I had to do some major rep