Enjoy the trip, but Toronto is too short a flight for a 2 for 1 ticket!
I told my OH that 2 for 1 works best on the longest & most expensive flights we cannot afford. For 4 years she believed my nonsense so we visited Vancouver, Hong Kong, Singapore and Beijing. This year she said enough is enough so had to go somewhere she actually wanted to visit- Barbados (way too short a flight).