"Boyfriend" still on dating app?

Started seeing this guy about a month ago. First night we met he deleted all of his dating apps in front of me. Said he was only mine and asked if we could be in a relationship. I said yes. He has been very focused on getting into bed with me. Said i love you very soon. Last night i logged back in to see if he was online and sure enough he was online all night while talking to me.
I reached out and ended our brief relationship. Am i exaggerating or right to leave?
Part of me feels he just wants to have sex and ghost me
"Boyfriend" still on dating app?
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