What do you think of League champion relationships lore?

So I noticed Riot over the years sometimes likes to pair champions sometimes. So far we got:

x - hinted; Miss Fortune was trying hard to get some chocolate ( ͡° ͜ʖ ͡°) during the Harrowing Event, but Lucian likes to fly solo.

x - official; political marriage, I think it was first mentioned in the JoJ, but idk.

x - strongly hinted; There seems to be more than just a rivalry going on between them since Riot has been dropping hints all the time; even in champion splashes. Check out Dino Gnar for example a Kat and Garen doll appears looking like they going to hug each other lol.

x - hinted; Ez drew this IIRC - http://riot-web-static.s3.amazonaws.com/images/news/April_2013/post/ez-lux-separate.jpg

x - official/past; Twisted Fate and Evelynn seem to have have had a romance together, before they broke up.

x - official/past; Illaoi seems to have some sort of history with Gangplank judging by Shadow & Fortune.

x - joke; http://lolwp.com/wp-content/uploads/Heartseeker-Vayne-Wallpaper.jpg

x - semi-official/past; Ekko seems to care about Jinx seeing as he even made a mural for her and used to have a crush, well until he found out how crazy she is. Unfortunately Jinx is a psychopathic serial killer, and doesn't seem to like or care at all about Ekko, and probably never had a relationship with him.

x x - semi-official; Rumble likes Tristana even names his mech Tristy, and Tristana is a concerned friend of Teemo, hopefully to keep him from going FULL SATAN.

x - semi-official; Swain and Leblanc definitely have a relationship going on, as Leblanc is helping Swain take over Noxus possibly so she could rule it in secret. Whether they are possible lovers or just having a mutually beneficial business arrangement is up for grabs.

Possibly not Canon

x - Illaoi seems to be currently interested in Braum considering her taunts toward him. "Finally, a man who won't break. Northman. There are motions I would like to show you. I know you are strong. I wonder if you have stamina."

x - hinted; Nidalee looks pretty enthralled by Lee Sin in the pool party splash. http://lolwp.com/lee-sin/pool-party-lee-sin/

x - semi-hinted; Taliyah seems to have a crush on Ekko at least going by her taunt to him, "Did the earth move for you too? Did I just say that out loud?" Not sure if Ekko feels the same.

I probably forgot a bunch but anyway what do you think?