Trying to get your sexual partner to make a monogamous commitment to you is not a loving thing to do; it's selfish.
I think the big problem is what I call "possessive monogamy." I think we should have a lot more freedom in our sexual lives. We should stop making monogamous commitments.
I don't think our system, where we have one romantic partner, where we get married and we're only supposed to have sex with one person - that doesn't make a lot of sense. Not that polygamy makes any more sense. I've found a system that seems to work for me, and it doesn't require monogamous commitment from anyone.
