In general, but i think for possible love interests it does mean romantically
Possible Spoilers
I believe I saw someone saying each man experiences different kinds of love, so it could be friendship, sibling, passionate love, and even obsession. Of course I won't say who but I have my theories ヾ(❀╹◡╹)ﾉ~
Yup, it shows how much they're coming to like/love her. Whether it's general or romantic depends on the color.
hahaha tbh i can tell who's who on your theory lol
the bar that is above their head shows their growing interest for penelope right? like general or romantic?