Car won t crank after pumping gas?

So after I got my oil changed a couple weeks ago I my car was acting strange. Sometimes it wouldn t crank. However, it would after a few more times trying it. But yesterday it was either starting immediately or taking 10+ minutes of constant trying to get it to crank. I went to AutoZone today to get a free starter/battery check and he said it was definitely the battery and I bought a battery and he said that was it. So I went grocery shopping, came back out and it went fine. Stopped to get some gas before heading home and now it won t start at all.

All the lights work as normal, nothing dims when I turn it on, I can hear the fuel pump priming, it s just not even attempting to crank.

I just want to narrow down what the possibilities are before I go out and buy another expensive thing that I don t need. I m thinking it s either the solenoid, ignition switch/coil, or the starter motor itself.