Does your co-worker hate you? Why would they be so mean as to leave those big red cherry bombs just sitting on your desk! I think there is evil afoot at your place of employment. Call HR, this was physical and mental harassment. darned if you ate, darned if you didn't.
Hope you feel better now. I always end up eating a few and then suffering later. Its the nature of the beast. If something was off limits for a few weeks or a season, we could handle it, but whole categories of food are off limits for our life, and will power is only so strong.