Man, was fighting with a 10-foot long snake all night long really enough to put his fighting instincts right?
Not that I don't believe it, just that it feels weird to end it all this way. At least showing him hugging Hana to sleep without trying to grapple her while asleep would have felt better, since it properly follows the entire point on this "training arc". Put the joke with the snake during a date next chapter or something instead, and have Hana make the joke about pitching a tent and choking a snake while you're at it (HYBRID_BEING really nailed it perfectly).
The issues with running a weekly manga and not having that much time for forward planning, I suppose...