huh I was sure mc was going to say something stupid like he was going to adopt her or find a way to marry her now so they can be together. Well one thing less to worry.
it's funny when you already know that nobody has a chance against mc, normally when a new enemy appears you can wonder but with mc stats there is no way for anyone, he is more cheat than solo leveling.
He should had explain like when you are nervous around people and imagine then in underwear or something to get rid of it, he imagine her being a bug so he can look her in the eyes, of course he touch a sore spot of her but he should try and explain her like that.
this the closest we are going to be from a "I love you". I don't think she was acting in this chapter, I mean she already won in life having the man of her dreams and the best daughter, I think she is use to the love everyday, if this was her younger version is another story.