Absence makes the heart grow fonder...

This is what happens on a regular basis in airports, train stations and, in this case, Buchanan Bus Station in Glasgow.
A passionate clinch to say 'welcome home' or 'so long, take care, see you soon'.
The statue is called Winchers' Stance. For the uninitiated to winch is a very Glasgow/west of Scotland expression meaning to kiss or snog.
It can even mean to go out with as in "are you two winchin' then"?