DG!!!

you got that right, it's completely obvious that DG will get in trouble. I think that Alex was thinking of his first love while he was drunk. What do you think?

I agree. When he drinks too much he wants to fuck and DG did not know how to resist ... but when he said "don't leave" I also think he was thinking about his first love. It could have been someone else in place of DG he would have reacted the same, I think ...
And suddenly ... DG will have hope, even if we know that Alex will end up loving him..but he does not like it yet and the only one who has hurt is DG...so （/TДT)/

Alex will fall for DG that's for sure, but regarding Alex's first love I think there was a problem between them and I also think that it is the exact same probem that is making Alex acting the way he is: like acting all tough, like he doesn't need anyone

According to the flashback, I think his first love was a bit of a bastard who made fun of him after falling in love with him and then abandoned him and that is why he does not want to fall in love again, so as not to be hurt again （￣へ￣）

I had the feeling that it was something like that.
Where did you get that

I deduced from the images of the flashback and the way Alex reacts after their "date" by wanting to kill his feelings in the egg.
but it's only intuition ╮(￣▽￣)╭ so it may not be that, but it's not far off, I think(๑•ㅂ•)و✧
I also think that he is afraid of abandonment and that he does not want to be attached to not being abandoned, he prefers to be alone rather than risk being left alone by the person he loves

All these really smart theories about Alex and his ex lol, i was so focused on my annoyance with DG, I didn’t even think about Alex possibly thinking about his ex. I think the same though, I’ve seen a few characters like this in yaoi manga, those who have had bad dating experience don’t want to date anymore. Poor Alex~ ╥﹏╥

Poor Alex you said, DG is the one that is taking all the pay back instead of Alex's first love