Together, under a clear blue sky
Rajesh... these words are powerful and beautiful... I love that line, stretching beyond memories ;-)
You capture well the awkwardness that can occur upon "running into each other" after the end of a relationship. Well writ Rajesh!
I can't imagine what it would be like running into an ex ~ probably very awkward! So many things would be left unsaid out of politeness, or only small talk devoid of meaning, as you said. You captured this feeling well! :)