It depends on the nature of the relationship, but generally, as anyone would, girls left too long may move on to find someone else.
it will dissapeer
It starts to melt!
It'll die.
cause skin irritation
nothing
It can cause irritation and chemical burn the skin. The same happens to your scalp if you leave it on to long.
Your skin will dry up.
If you leave the contraceptive implant in too long, you could get pregnant. There is no medical danger from leaving it in other than pregnancy.
It shribbles and if you leave it in there too long it dissolves
If you leave pork out in the sun for a long time, flies will lay eggs on it and it will also go off.
The lima beans will bounce in the water
No, Jenny does not leave Gossip Girl.