The fact that these Fathers were virgin monks makes them more, not less, qualified to speak on the proper state of man, including marriage and sexuality.
I'm sorry but I'm going to have to disagree... God created man and woman, not just man and God. I don't disagree with monasticism, in fact I think it's very important and very beneficial. However I do believe that monastics often don't fully understand (though we don't either) marriage or what goes on between man and woman. Yes they often have significant spiritual vision. But we must remember, monastics are people. When people isolate themselves from something or someone, they begin to lose touch with it and don't fully grasp it.
For example, I know my family very well. Yet, no matter how much I study and learn facts about my roommates families, I will NEVER understand them as intimately as my own, unless I become a member of their family myself.
IMO, unless you are living in the world, and unless you are in marriage itself, you cannot really understand everything that goes on. (however, even if you are married, you don't fully understand everything)
I'm not married yet, and although I could talk to married couples and although I could read about marriage, there is no way I can understand it unless I have had that experience and have lived in it with a spouse.
Again, I'm not trying to denigrate monasticism. However if I were married and seeking advice, I would seek out a Priest that is married before I'd look for a celibate Priest. Same thing for other issues such as dating, I try to seek out a Priest who has been through that before I sought out a Priest/monastic who has never experienced such interactions with the opposite sex.
Same thing IMO goes for things like listening to secular music, partying, dancing etc... I've read many monastics speaking against this as something worldly and unChristian... Yet I've spoken to Orthodox Christians living in the world, and indeed Priests about this issue, and all see it differently than monastics. Monastics way of life is based on separation from the world (so that they may pray more earnestly for it), but in that separation, I believe their humanity then shapes their view against everything that is not of the Church or God.
I love monastics, I enjoy when we attend services at the monastery and when the two nuns come to services at our Church. I have the utmost respect for them, but I wouldn't seek out a monk for advice in a relationship or in something that they possibly haven't experienced themselves.