Poor Gunther. Always existing in the shadow of other characters. Lusting over Rachel, making coffee, then lusting some more.
Actually, when you think about it, on top of his unhealthy obsession with Rach, he was also a hardworking, kind, and loving person. Most importantly, however, Gunther was us and we were Gunther - both just chillin on the sidelines, watching the gang live out their lives.
We see you, Gunther. We sympathise with you. We understand.