<human>: I [25F] had this sudden odd tugging feeling in my gut that my boyfriend [27M] was using OKcupid again (the site we met on a year ago). When we got serious I deleted mine completely and he only deactivated his. He claimed it was so he could go back and look at our old messages. Sure, whatever. 

Well this evening when I had that tugging feeling, I made a quick profile and remembered his username and searched it. And there it was. With a new profile picture that I know was only taken a few weeks ago. Along with him being active as recently as today at 3 PM. 

When I asked him why, he said he reactivated it when he and I got in a fight one weekend over a month ago and he thought it was over. I asked why he hadn't deactivated again since then and he said he "only gets on there once or twice a week to see what kind of people find him attractive". 

I asked him why does it matter if he loves me? And I love him? Why would it matter who is out there?

He called me a drama queen and said I was being ridiculous. 

I find this extremely inappropriate and I don't see how it isn't. I have ended the relationship. I refuse to be with someone that is playing the field behind my back, to see if something better comes along. 

I feel even more stupid that I have been revolving my whole world around him because of how much I love him. We have been spending time, having sex, and he has been on this site looking at other girls, and I don't know but I assume talking to them as well. 

I don't believe I am being overdramatic. I am deeply hurt and devastated. I can't believe he would go behind my back like this.

Provide a brief overview of the text.
<bot>: Had a gut feeling my boyfriend was on OKcupid again. Made a quick profile and was right. He calls me overdramatic. I am devastated.