Is feeling hurt justified

I’ve been talking to my boyfriend for almost 2 years and we finally met up 3 months ago and it went great and he asked me out 2 weeks ago and I said yes. Last night I was with him and he randomly brought up how his coworker found him on tinder ? And I was a bit hurt and shocked that he still had tinder so I said wait your still on tinder ??? And he told me deleted it after the coworker messaged him. He’s an amazing guy and treats me better than anyone ever has but the fact that we’re dating now and he still had tinder for a whole 2 week of our relationship is a bit hurtful. Am I justified for feeling this was or should I just get over it because it’s only been 2 weeks?