Situational irony is occurring as the character push the date of s.u.i.c.i.d.e to Valentine's day however due to their constant journey to finding purpose they keep pushing the date even further until the day they decide that they have way too much stuff to leave behind thereby quitting the idea of s.u.i.c.i.d.e.
I'm confused, was he in jail? That's how jail/detention cells look.
Try going to bed at a reasonable time.
Answer:
No, imagery would be if there was a description of the roses, by sight, smell, or etc.
Explanation: