And repeat the same for the rest:

Anata wo omou kimochi ni
Tane mo shikake mo nai wa
Watashi no ashita ni iro wo tsukete kurete
Doumo arigatou

Tanpen shousetsu ni naru kurai no
Shooto shooto ni naru kurai no

Ai wo sagashiteitai no
Motto haru yo tsuzuke
Ai wo sagashite shimau no
Tatoeba "sayonara" no naka ni datte

For the goodbye darling outro, it's just the E and B you played at the intro.

Notes:
1. Strum using open chords.
2. The actual guitar parts are pretty minimal, and the song is bass and programming heavy - these easy chords should cover it.

Referring to the official band score, the song is played in the key as transcribed above but the guitars are tuned half a step down.

Hence, you should be playing F C in the verse if you wanna play it as per the band score notation. This is because the actual guitar parts are not strummed chords.

Secondly, it's a Fm7 chord, not F during the intro. If you wanna play this in standard tuning, Em7 then. For the verse, it's as per the transcription shown above.