The irony that the guide is accidentally receiving what he was trying to dish out, sinking into despair as he becomes powerless and never able to seek revenge. Delicious
That's how I interpreted it first time I read it, but I'm rereading now since it's been a while and noticed they "took a break" and then he turned off comms so they couldn't contact him...
He's living his life freely so if he wanted to grope her, he would and definitely did
Those are just user submitted for this site, it doesn't reflect what the author has planned at all.
Not to mention it's a twitter manga, it's no holds barred, it could suddenly turn into porn next chapter, but nobody knows to tag something until we get there.
In cases like this, it probably represents that the author is taking the story more seriously and actually going to develop the MC rather than just a PoV character in a twitter manga since it started getting popular
He didn't carry her home. All he did was roofie her and then propose after she was half-asleep and couldn't respond. Her friend took her home and he just showed up the next day claiming to be her fiancee.