You have to give Knute credit…he understood Gunther enough to know he wasn’t the type to settle for treating a girl in a tasteless manner..aka handing a girl a roll of toilet paper when it’s inappropriate for a guy to even be in the girl’s restroom. That action would besmirch the girl’s reputation forever in that school.
The fact that Gunther gave Rosa flowers when he asked her to the prom may make him look exceedingly old- fashion but will earn him respect in the eyes of the girl’s parents.
Since these teens still have another year or two of school to finish yet, it’s preferable that their passions don’t get too heated up at this point in time. Too many things could go wrong and result in the girl not finishing school or getting into college at a later date. It’s best Gunther proceed just as slowly as he is now doing.