Help me find this manhua (please im desperate)

So the mc is tired of taking mls bullshit who happens to be a very famous celebrity(singer) whos known for his scandalous relationships and if I remember clearly he has long purple hair!! the mc runs away and turns into a top by sleeping w some1 who helped him travel or smth but yeah ml found him? (I think) and gets so mad that he takes him to his private island w a fucking large ass mansion. Plus the ml and mc knew each other, in possibly university or highschool and ml would sing songs with a guitar to other students AND mc had another dude chasing after him who turned out to be mls ex in uni/hs. I REMEMBER ALMOST EVERY ABOUT THIS MANHUA EXCEPT THE NAMES.