What would you do If you have the ability to change any anime character's relationship?

MLPFan Well, animes have varieties of shippings in one anime, a lot even have one characters being shipped by a lot of characters. But sometimes, how the writers decide the canon ship can be disappointing. So, that's what I'm trying to ask. If you get to make any character's relationship such as shipping them with any one you like or make them as enemies with any one. How would It be?
PS:Please add what anime the characters are because I don't watch every anime there is, plus some animes have characters with the same first name.

Comments

I'd make Hitomi hate Sayaka and Kyousuke (Puella Magi Madoka Magica) and put Sayaka and Kyousuke together - TwilightKitsune

Actually no, I hate Kyosouke now - TwilightKitsune

I'd have Ash severely annoyed by Serena. I'd also have Serena slip up and show her true colors so he'd be even more justified. He'd have more personality like he did in his early days. I really believe Serena would grate on Ash (even more than Misty did) had she been in the original series. There'd be lots of eye rolling and smart alec quips from him. - visitor

I would have kyousuke stop being a jerk and very insensitive so sayaka can have a happy ending with him - Greninjafan127