Thanks for the reply Dave.
I replaced the coolant temp sensor today and no luck. Changed my spark plugs and realized that I have a bad valve stem seal on the first cylinder as the spark plug hole was oily. Perhaps this my issue? It makes sense I suppose, maybe as it gets warmer more oil or gasses passes through the head or something? Would this make the car die? Haha, I'm so lost now.
I also think that the battery is the incorrect one for the car, but it does start and run fine, until warm.
Thanks!
Scott