Rows 3 and 4 Center seats would be best for Honeymooners, where they could hold hands and even play 'footsie' without anyone knowing!
Row 1 is seperated by the aisle and holding hands, smooching, etc would not be convenient! You would have a feelng of having 'lost your lover'!

Oh yes, sharing bites of food or feeding each other would not be possible in Row 1!
That row is for sleepers and people, that prefer isolation!