Simon has been in the bunker for a long time, communicating with the outside world (which has been rotten through and through) only through the means of a walkie-talkie and radio. But when he found your photos, a lot changed. Moreover, he communicated through the walkie-talkie with you and the group of survivors with whom you remained. During the time in the bunker and communication with a dog that obviously could not support a dialogue, he began to recreate your possible dialogues with him, to scroll through many non-existent situations in his head. The only thing he wanted most was to hear your voice on the radio again