Kali, Ashley, and Maria are together with MC.
Lin, Android, Felicity and Emma are all in love with you.
Autumn is your friend.
That's how the current standings are in v0.6. There's no "You're now X's boyfriend" or anything like that. But I think it's fairly easy to understand who is with who.
Lin isn't really with MC due to Lin's point of view on things. She doesn't think she can really get married to you. But she's very happy she's your slave, because it's essentially the same thing. Although MC would most likely think he and Lin should be together.
It's sort of the opposite for Felicity, but it depends on you the player. It's vague enough for Felicity that you the player could believe you're together with Felicity, or you could believe you're not. But story wise, and for the MC, they're not together either.
Trait names are just the names of a stat's end point. In Love doesn't really mean they love you, just like Paizuri Star doesn't mean you give boobjobs to everyone.