How you describing is confusing indeed but you are rushing a bit too I think to get his attention. I don't know what he is busy with; probably working but when he has time he comes back at you. And meanwhile thinking/testing you. We don't want to waste time so we must be sure first before going for it.
Late replying is nothing to worry about, I do that too sometimes. Reasons; im busy, don't know what to say, thinking about what to say or just low priority.. But at the end I always do reply. Just wait a bit, no hurry.
Not all bulls are always slow while most think like that, we have our moments where we can go fast and slow down again. There are many things that have influence on that.