Pushover
As snippy and rude as Olimar became at times, Falcon always wound up forgiving him anyway. Olimar wasn't an overly-charming guy, but he could definitely manipulate people if the time called for it. They fought a lot-often because Olimar doesn't think about what he says before he says it. Falcon tries to ignore him or stay upset at him, but the little guy was just so cute. He had a number of tricks up his sleeve that made Falcon melt like butter; usually, just making a pitiful face would do. When that didn't work he'd either snuggle up to him when his guard was down or give him a quick kiss on the cheek in passing. After that there was his backup weapon; simply tackling the man and laying limp on top of him usually did the trick. Falcon didn't want to move when he did that, because he'd usually fall asleep just a few seconds after, spent from wrestling a man several times his size to the ground. Falcon would just lie there and stare at him like he was the cutest thing in the world, and then doze off too.
He liked to think he wouldn't go so easy on him next time, but he always did. Maybe he'd just have to come to terms with being a softie.