I recommend that you wait a little there is a plot twist about the ML and MC that will change everything and makes his past behavior more than acceptable.
I won’t, because even if he had his reasons he still kept it from her. If they were in any kind of danger he should’ve tried to let her know in any way possible. Like did he not think they could try to figure it out together as a united front?
He did not think about her in the slighted. His behavior wasn't because he was protecting her but he was protecting himself from everybody. He was a victim and did not trust anyone. His behavior is so understandable. And keep in mind he was an S-level esper and she was forced against him by the government to keep his power in check. I do understand that she was hurt but so was he. Just wait and you will see .
imagine getting ignored by your husband for years, feeling that you did not deserve to be loved. getting reincarnated and having a family that loves you truly even if the parents are lowkey knew that their child are already dead BUT still treating you the same 'cause they love you the way you are. and here comes the husband with his shiny weewoo tryna get back at u 'cause he was sorry for what he did and you got back together because of it. YAYYYYYYYYYYYY def a lost cause XD