
It was about this a guy who works at a company. He is kind of stand-offish but warms up to his annoying boss. His past is revealed that he quit his old company because he was outed as gay by his previous lover (I think) Then the boss relocates for work and the dude goes to him to confess his feelings (I think he previously rejected the boss's confession and was regretting it).
There was also a spin off story where a coworker from the old company likes his best friend (this friend works at the same company as the main couple and liked the main dude but was shut down before he could even tty) . The best friend wasnt sure how to feel. Fastforward, when both feelings are confirmed the bestfriend assumed he would be the uke which annoyed the dude. The dude told him he wasnt atthe receiving end.

I posted this before but still havent found it.
The seme keeps the micro slides of the uke's sperm in his lab coat pockets.

From a Anon
@Circan: I think this is the one you're looking for:
http://www.mangago.zone/read-manga/i_d/

What i remember from the plot: two guys who were friends since high school. They meet once a year on the Uke's birthday (?). Uke lies to Seme that he has a lover now and Seme insisted on meeting the "lover" because he wanted to move on from his one-sided feelings. They go to a bar and the Uke asks his friend to pretend to be the lover. As the friend is about to kiss the uke, the seme gets jealous and stands up saying that was enough.

http://www.mangago.zone/read-manga/1_365_no_koibito/
I think that's it

The Seme is from Russia. He learned how to bar-tend from the Uke. Uke thinks Seme is drunk and proceeds to have sex with the Seme. Uke finds out seme actually wasn't drunk at all. Seme goes back to Russia (i think).

OMG, I HAVE FOUND IT. The Yaoi Gods blessed me. But it's a random side story. My dumb ass already has it saved to my list LOL. If you haven't read this, definitely should.
http://www.mangago.zone/read-manga/kichiku_encount/mf/c006/1/
The plot was that they were both on a train. One of them was listening to porn out loud on accident. They end up hooking up in the train station bathroom. The seme is sort of like a call boy where he goes in dates with dudes. The uke works at a company. The uke thought the seme was possibly cheating on him and avoids him by working all day and night. The last detail I can remember is that the seme would put on straight porn for the uke.
Ahhhhhh. Yep that's it! Thanks!