My office is very petty and childish. Things have been going on all year which are quite close to bullying against myself and other colleagues at times. Now cards are being exchanged and myself and another colleague have not received cards from 3 of these people when they have sent everyone else one. I got a tin of chocs for everyone but was going to send cards to everyone except these 3. DP said I'm being as bad as them but I don't think I want to send cards to spiteful people. WWYD? I appreciate this is a 'first world problem' and very childish but this is what it's like in this office.