This continues to be cute and entertaining, but I've also realized two things:
First, unlike a lot of the more traditional wifu-from-space rom-coms, Lulu is actually considerate of the people around her. Normally, at least the first alien is some combination of fairly arrogant and fairly headstrong. In particular, they very rarely leave the protagonist much say in their relationship or where they'll be living. By contrast, Lulu seems very empathetic with the people around her, even beyond Ten, and we see her actively considering the inconvenience and potential trouble she's caused Ten.
It's a very nice change of pace and, I suspect, a large part of why this take on an old concept feels so fresh.
The second thing I realized is that her heals are just strait up spikes. Or, more accurately, I realized she's going to be keeping the costume with the floating thumbtack heals, at least in the near term. Given her size and the points on those things, that can not be good for the floors she's walking on. On a related note, I wonder if the fact that she's the only student wearing her outside shoes indoors will be brought up.