Whether it's competition for the new home you want, the listing that you want as a REALTOR® or NCAA March Madness (which is the BEST time of the sports year!)...no one likes to lose.
There are people that say they aren't that competitive but when they don't get that house they wanted to buy or they don't get the listing there is still disappointment. Then there are others (your's truly) that have that desire to win all the time...even if it's video games with my kids (which I don't win at anymore) and when you don't there's disappointment.
How you move forward from that disappointment is a sign of who you are.