Booth Variety

Last night (actually quite early in the morning after a late night out on the town in Vegas), my boyfriend and I went to a 24 hour restaurant before we called it a night. We sat next to each other, shared french toast and an omlette, and sat down complimenting each other and talking sweetly about nothing at all. Everything was smiley and happy, and we were both excited to be sitting together all dolled and dressed up together in our little booth.
In walks a couple and they sit directly in the booth behind us. Why anyone would do that in a 'seat yourself' restaurant I don't know and I really don't know why you wouldn't go as far away from people as possible when you are engaging in the wonderful activity of arguing like these two were. These individuals trudged in, plopped down across from each other, and began tearing into the other's flaws, self-esteem, and any other issue that could cross their minds. They did it loudly and right behind us for the rest of our meal. Pretty soon my boyfriend and I could no longer focus on our own meal and conversation, but were drawn into theirs as we both tried to not look and listen in (feeling awkward and uncomfortable about the intrusion into our wonderful evening).
A couple of questions. 1)Why would you choose a restaurant to fight in? 2)Ok so you choose to fight over a late night dinner, your seating wasn't selected for you, why did you have to sit right behind me? I didn't barge into your evening. Why are you inflicting yourselves into mine, and everyone else's who happen to be around you? And 3)How could two completely different evenings exist back to back of each other like that? I find it amazing how two situations completely opposite of each other came into such personal contact last night. It shows how many different things can go on in the world at the same time. It is slightly astounding to me, and brought me to reality last night when someone was having a bad evening while I was having a fairytale night.
At one point the woman in the booth behind us left for the restroom, giving us some peace and allowing our own conversation to get back into flow. During this time I noticed the gentleman watching us. A little awkward. I wish I could know what he was thinking. What was going through my head was 'You two were probably like this once. Holding hands, laughing together, and wrapped up in each other's conversations. I hope to never end up like you and her, fighting in a restaurant.' When the woman returned, they quickly resumed their arguments (more loudly than before and with renewed vigor). We promptly gabbed our check and left the restaurant.
How strange all the little isolated scenarios one can find in every booth in a restaurant.