Have never seen any negative consequences! You don't even have to reject him, leading him on the whole time and then just not choosing his route just makes him another neutral/friend, like Ria and Jasper.
Thanks! I already figured that out. Too bad my Jiyel lady won't get his gift tho because she has to host a free history lecture to save money XD
Gosh, yeah, the musicale problem xD
My defaults are usually Musical, Lecture for Jiyel, and Midnight Picnic. But I think I'm gonna try hosting other events just for funsies haha