Okay so basically, in an on and off again relationship (both at fault), but i saw on her phone (wasnt snooping: she has a car holder for her phone and she was checking her gps and when she left google maps it went to the homescreen and i just glimpsed the screen because i was still looking and i saw the tinder app). 

So like i know that we arent really together or whatever (her words or not really because any discussion about where we are just ends with her telling me she doesnt want to talk about it), but it hurt me to see that regardless. 

Ive been trying to not be jealous or make comments and also trying not to go crazy when i dont see her all week, but i cant help but be hurt.

My friends suggested that i should do the same and try and move on. The thing is, I still want to try and make it work and i hate just casually dating its pointless as far as im concerned, but it does help me nkt be crazy and jealous in regards to her. So i went on a site and made a profile but i cant help but feel slimey and shitty. 

I really dont know of its good advice or if i should just give up because i feel like after a little over a year its worth fighting for still but i dont want to be the only one fighting even though shes the one who came and got me back... 
So AITA? 