[ from a purely selfish perspective, he wishes Erwin had told him, but it's not that hard to figure out why he didn't. Erwin is (was?) his superior. he doesn't give a shit, of course, but maybe that's easier for him to say as the subordinate.

regardless, he didn't say anything, either. it doesn't really matter anymore whether he regrets it or not, but he feels like he owes Erwin some kind of explanation.

it's not like he ever expected to have the chance. ]

I... thought it would make everything harder for you if I did. I'm not confident that was the right decision. I went back and forth on it so many times after—

[ after you were gone. nah, he's just going to leave it there. his right hand travels down to Erwin's side, to where he was fatally wounded, halfway expecting it to open up all over again.

he holds it there, just in case. ]