Overheating car and electrical gremlins Help!

A few days ago I was driving with my AC full blast when I noticed the temperature gauge on my car start to rise! I pulled over and opened the hood and saw that my radiator fans were not spinning. I checked the fuses and noticed one of them was burned out. I replaced the fuse and the fan relay made it home. I wasn’t sure which fan was tripping the fuse so I traded cables with the other fan and let my car run idle till it began to overheat hoping the faulty fan would trip the other fuse. Both Fans seemed to be working fine. I turned off the car … and waited for the car to return to normal temperature before proceeding with other tests… once cool the car wouldn’t start! I get power to all the instruments but the Starter wont turn! how are these things related?! help!