Hi Lilly, you asked Mdinaz:
if you did not know the person's name, what house would you use?
I personally would use the 7th as well, because it represents the house of "other people" in general . William Lilly states: it gives judgement of Marriage and describes the person inquired after
, whether it be Man or Woman. All manner of Love questions, our public enemies, in astrology the artist him/herself. So in fact he says every other person inquired after is designated to the 7th.
For the 5th house he only writes about children, pregnancy, wealth of the father (2nd of the 4th), health and sickness of his son or daughter etc. but he does not say anything about romantic adventures and dating. I think this was actually added later (and also in view of natal astrologies 5th house which relates to romance amongst other things).
So I guess we have made it difficult for ourselves in including the 5th house as signifying a lover.
In Barbh's case I also would use the 7th.