Is it wrong for me to accept the very real possibility (in light of social trends in the past decades) that my current partner and I might well break up, for reasons yet unforseeable, in the future? It seems a rational judgement - a large number of marriages don't last, and unmarried partnerships even more so - yet I can imagine that I would be upset if my partner accepted this possibility as one of those "facts of life" we have to deal with.

It is certainly wise to take these statistics seriously and to realize that you and your relationship are not immune from those trends. Yet, I don't think the ideal response is to 'accept the possibility' that your relationship will fail, but instead you should ask yourself why relationships fail so frequently in our society and take steps to avoid those pitfalls. If you do all the same things that everyone else does, you should expect the same results. If you take extra steps to protect honesty, intimacy, closeness, commitment, fidelity, etc. in your relationship that other people don't take, you are more likely to succeed.

I was talking to a girl about my opinions on love, and on the topic of polygamy I told her that theoretically (it's hard enough falling in love with one person!) I could see myself with two women that I completely loved. She told me that I confused her because she could not square that statement with a previous statement where I spoke of my want for true love. I told her that I didn't see any contradiction between those two sentiments. Maybe if I understood why people are opposed to polygamy I would have an easier time defending my opinion on the subject. So why is it said by so many people that it is impossible to fall in love with more than one person at the same time? When I ask these people why this is so they can not give me a clear answer. Can you provide a clear explanation for why love must (or allegedly must) be exclusive to only one sexual partner?

Why might someone think that polygamy is inherently incompatible with genuine love? One very plausible reason is that it sounds like you are asking your 'true loves' to enter into an inherently unfair and inequitable relationship... you would receive 100% of the relational attention from two women, while they each have to settle for about 50% of your relational attention. That means you receive quadruple the relational benefits (from the two of them combined) compared to what each of them can expect to receive individually from you. That sounds like a wonderful arrangement for you, but not a very good deal for them.... and asking them to be involved in that doesn't sound very loving. I don't deny that it is possible to have deep sentiment for multiple people at the same time, I'm just saying that it looks like you're asking them to enter into a type of relationship that is objectively unfair and not likely to be in their best interests (and why would you do that if you truly 'love' them?). There...