Canonically c!Ranboo and c!Tubbo didn't marry because they loved each other. They married each other for a tax write off so yeah, mike joined the Smp and met a quiet c!Ranboo. then they soon became friends and now they are dating :D (ranboo and tubbo flirt as friends its ok)
my dsmp oc architype: The Paranoiac: A character that alternates between extreme friendliness, apathy, and paranoia. He is good at fighting