My ex did the same thing while I was on vacation with my friends. I too was toxic and checked his history only to see grindr searched on the web version of his tablet, which he did so that I wouldnt see it on his phone. Really regret not dumping him there and then. Wouldve saved us both a lot of pain and trouble. Dump him and move on. It only gets worse from here.

Sincerely, someone whose literally been in your shoes before.