Is 'Was it a sudden decision on his part, or had he already made up his mind when he parted from me a few hours earlier? ' a logical precursor to the hypothesis 'He left in the spur of the moment whilst we were talking, which was quite rude. '
Was it a sudden decision on his part, or had he already made up his mind when he parted from me a few hours earlier? ###He left in the spur of the moment whilst we were talking, which was quite rude. 