I agree with re-pete-a.
The moon Rx would be interpreted based on the whole spread. Some say that it would worsen or block the qualities of the moon, i.e. confusion, not everything is known, delusions, mania,etc. and others would say that it lessens the negative: confusion lifts, beginning of clarity, things come out of their hiding.
I can't say with 100% certainty without knowing the entire reading, but if the sun followed the moon Rx, then I would be generally inclined to read it as "things coming to light", secrets revealed, etc.
Relating to romance, It would suggest that your friend would no longer be under the illusion of "love" for lack of a better term. Sometimes when you're in love it clouds your better judgement and you catch yourself saying later, "What was I thinking?"