ML fell first and ML fell harder

Not yet specific but since ML was a kid he started having interest with the MC and when they finally reconciled after years, he confessed to MC

ML fell at first sight of MC and confessed. They got together and this manhwa is all about their lives as they lived together after just getting together for a week

ML fell first at MC but was the shy type so MC didn't have a single clue about it. Until the MC found the ML interesting and was not the kind of person he though the ML was

Even with his memories erased the ML kept finding himself falling for his guide