Thoughts?

Do you think that when someone takes forever to reply they’re talking to someone else? He used to respond quickly when we first started talking. Now he takes hours/responds the next day. We aren’t in a relationship but we are fw eachother do you think that he’s talking to someone else?🤔 not accusing but just wondering what your thoughts are? He gets off work at 3:30 pm. Yes I know he may be busy but he could at least inform me if he is