Is he cheating?

I've been dating this guy for about 5 months now and just recently one of my friends found his tinder profile. We met on a dating app so I know he had them. He's been really busy lately and I knew he would be going into the relationship but lately something just feels off. When I asked about the dating app he said he just forgot it and that he would delete it which he did. I don't know if i'm just overthinking or what. I know its not much to go with but any advice would be helpful right now.

Is he cheating?
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