Questions: Relationships

I'll make the argument that it is selfish to want someone's attention in a romantic sense for yourself. Yes it's perfectly normal to want that, and I am 100% in favor of monogamous relationships, but you are thinking of yourself when you propose being mutually exclusive, aren't you? Regardless of what you offer in the proposed relationship, you're still benefiting from it, and consequently denying other potential partners (again thinking of monogamous relationships). You don't typically stop to think about who else is interested in your potential partner, therefore it involves a lack of consideration for others and is selfish. Normal, and perfectly acceptable, but still selfish behavior by definition I think.

We have been together for 3 years and I really love her and her ass but she wanted to go to this one park but I had to cancel it due to family issues and she said the only way to make it up to her is if I kiss her ass so I don't know I don't wanna say no to her but then again it could be really humiliating and she's says if I don't she'll take away half of my money so I don't know