[thx11389793]

If you've been holding onto a LOT, it's possible to spend the entire length of the experience processing everything you've lived up to that point. I've seen it in first-time MDMA experiences, notably a friend in his late 20s who'd only recently 'come out of his shell' so to speak.

I think even in that case, his experience was probably wildly useful, despite bearing little to no resemblance to the happy empathic presentation that's commonly associated with MDMA.

My answer is 'yeah, probably.' But ideally this hypothetical couple should ask someone experienced who knows them better.