Don't know if this is the best place to report bugs but:
Something's broken in the new version. I had tried starting a new game and got to a point where there simply weren't any of the girls in the city. Like, I was in the park in the Afternoon but Lea wasn't there, I was in the house in the evening but Cleo wasn't there. Then (I think closing the game and reloading did the trick) I managed to find them but even though the dialogue "Lea is not a love interest" appeared, in the list of love interests Lea was still listed as "This character is not a love interest." Spending time with her didn't seem to advance the relationship meter. On a third attempt this had worked - Lea was now considered a love interest, but now the list of H-scenes was now doubled or tripled in the menu. At some point I wondered if this had anything to do with the fact that I had done some stuff to the savefiles (to import a 0.2.8 save) but when I deleted the game and unpacked the zip file again and started a new game, I got to the part where Rebecca becomes a love interest. I got to the part where I reached relationship level 2 with her but then spending time with her just didn't advance the relationship anymore. I don't know if the relationship actually wasn't advanced or if the display in the "Love interests" menu just wasn't updated.
On a related note: In previous versions there was always an animation of a heart that fills up after you spend time with someone and that animation showed you how far you had advanced on this relationship level. This animation has simply always been gone in this version. No reloading managed to change that.