A casually dressed young blond woman is looking away sadly as couple near her are kissing.
Two people are having an intimate moment while another avoids looking at them.
Two people are a couple.  Kissing is intimate.  Looking away is avoiding looking.
Some would call kissing having an intimate moment. In someone avoids looking at something, they must be looking away from it.
Kissing is a form of an intimate moment, and avoids looking is a rephrasing of looking away.