Okay then it probably the reason when ya date the mom with the blue haired child that blocks a possible love path with them, I did try get on with them as well but like said earlier it not an harem game, so possibility is that you can date one mom and have fun with other girls on the side, but not date more then 1 mom.Its the 2 asian tenants (mother & daughter) - got the scene by being on the love path with both, which requires some (but not much) restraint in early decisions