Honestly... It's lucky that they're not officially dating. Otherwise Tachibana really should have dumped his ass.
Jinguuji has that weird self-sacrifice complex a lot of american dads seem to have, where they won't talk to their family but sure are gung ho about dying for them. Obviously character growth is on the horizon for Jinguuji, but it's still... So annoying....... Get on some antidepressants, get a therapist, a hobby, and then go talk with your best friend and wife, dude.