It's Lilo and Stitch.
It may look like a sweet and innocent cartoon about a little girl and her pet alien. In fact, it is a sweet and innocent cartoon about a little girl and her pet alien.
It also has two m/m couples that act like couples. Jamba and Quigley live with Lilo and her big sister. Quigley, who is nominally male, is "disguised" as a human female (as well as anyone with one eye, six limbs and no endoskeleton can be.) That means he wears a muumuu all the time, and a sheitel (wig) when he goes out. He's also excessively neat.
Gayer yet are the "bad" guys - Gamtu, who is a giant bipedal shark with elephantoid feet and his "friend", an alien experiment who makes sandwiches. They live together in a cave, and they fight and get jealous and just act *married." It's very sweet.
This series also tosses the word "ohana", meaning "family" around in a very endearing way - it seems to mean, anyone connected to any one we care about.
Edited to say it's "Bleekly", not "Quigley". Sorry.