One of the most important aspects of Chivalry is the Championship of a Lady. When you find a person whom you feel is worthy to be championed by you this is an example oath that you should use to bind your sword to her honor.
The Oath of the Champion
My dearest lady at this juncture I find myself bereft of a Lady to champion. It would be a great honor for myself and my entire Household if I could fight with your favor, and be your champion in this upcoming Affair of Arms. I will do my best to prove the strength of my arms so that I may show to those nobles assembled your great honor, beauty, and gentle grace.
If she accepts your offer of Championship she is then expected to bestow upon you a favor. A favor is a piece of cloth or jewelry which is personal to the lady. You wear the favor in your belt as a sign that you are fighting for her and that you will do your best to uphold her honor on the tourney field.
Virtues of Chivalrous love (also applicable to modern dating or relationships of any type, both personal and professional)