the nice thing about a second honeymoon period is that it's rather tempered and ambivalent, there's still some unsure excitement but you're too familiar with one another to be under any misconceptions of perfection
for every step forward there's a second thought, a hesitation, a consideration of retreat. which means the continued mutual interest is deliberate and intentional
but things like showing up every week to see each other, texting even when it's imperfect and effortful, sharing not-quite-formed feelings with each other, that stuff isn't exuberant or flashy but it does mean something