2 men work on the same company, the seme is the boss and the uke is his employee. At the beginning they don't get along since the uke is kind of antisocial but in the end they start dating (although the uke has doubts). The seme gets an offer to get transfered and since the uke isn't sure about their relation he breaks up with him. He goes away and the uke regrets it and calls him and says he misses him and they get back together. Additional info the best friend of the seme knows about their relationship and when the seme went away he became like the new boss and when he tries to befriend the uke he feels kind of attracted to him but does nothing.
That sounds like a Yoneda Kou work... http://www.mangago.me/read-manga/doushitemo_furetakunai/ aka No Touching Allowed
It's about 3 childhood friends who live next to each other, number 2 is in love with number 1 but one day they discover number 1 already has a boyfriend. But then number 3 tries to comfort number 2 and tell him he knew he likes number 1 but he is in love with him (number 2) additional info number 1 is poor and number 3 is rich
I think I know which one you're talking about but I forgot the name. Is there a part where the seme buys some condoms and the uke asks why he bought them and it turns out that the seme was just practicing how to using condoms cause he never had sex just like the uke? Did the uke work at a convenience store? Lol I want to remember the name.
http://www.mangago.me/read-manga/tonari_ni_kedamono/
I thinks is this one xd
One guy picks up a boy from the street, afterwards the boy leaves but in a party he is so sad for leaving him he consumes drugs and when he was about to cheat with other guys he had an attack, and before falling unconscious he tries to call him, then when he wakes up his lover was there he told the boy his friend saw he was trying to call him so they contacted him.
That's all I remember (/TДT)/

It's an omegaverse where an omega and an alpha are dating but one day the alpha finds his destined omega and leaves the omega. Years later the omega finds out his ex has a twin brother who is also an alpha and they start hanging out and after some stuff happens they finally are happy together.
Thanks!
Update: found the name, it's Romantic Lament.
Omg that sounds interesting
Imma reply to this so I can be updated
I know, I really want to read this as well
Found the name, it's romantic lament!
Where do you read it?