他抱她如此紧正如刚刚抱我
[tā bào tā rú cĭ jĭn zhèng rú gāng gāng bào wŏ]
'他抱她如此紧正如刚刚抱我' implies He hugs her so tightly as he just hugged me, illustrating witnessing someone being intimately embraced by someone who has recently shown you affection too in such manner. It expresses a mix feeling from envy to nostalgia and longing when observing another couple sharing a close moment similar to what oneself has experienced.