In the coda, the bass plays something like this:
This section is played in the higher register, so I notated it in the treble clef. I also resolved it with a high G, like the Zombies do in live performances, although in the version on Odessey and Oracle, these figures just repeat until the fade-out.
Most of these notes occur on the off-beats, and in a way, this matches the relationship described in the lyrics; the bass part emphasizes what's in-between the beats in the same way that the lyrics focus on the mutual nature of the relationship ("I want her; she wants me").