How would you feel…

So yesterday I found out that my boyfriend still had his dating site profile. Okay so we did meet off said dating account. Well he told me that not too long after we started dating that he deleted it like I deleted mine. Or at least he thought he had deleted it. Now that I know he’s still got his and that he’s randomly logged in I know as of yesterday with me sitting there kinda makes me wonder how many times he’s been on since we started dating. I know there’s not been any random texts from girls or messages off of Facebook. I say that because he lets me on his phone. I never had even noticed the app on his phone because I actually thought he deleted his account. So now I don’t know what I should do. How would you feel knowing this?