Sap On A Bench

A cryptic description of, well...lets see if you can figure it out.

A person sitting,
Sticky from the start,
Lonliness twitching,
Quickening its heart;

A bold decision,
Like an orange peeled,
I envision,
A little pig squeeled;

Sap has dried,
Glueing it to time,
Desperate cried,
The saps adhesive crime;

A person laying,
Fruit from the start,
Someone melting,
Losing his heart