I have aspergers.
To be honest I get fed up of people diagnosing Aspergers, whenever someone behaves poorly. But also see what people are saying about her behaviour.
Personally, I just think Lucie is a shit.
She doesnt have problems with friendships. She pursues friendships with men she is attracted to and then dates them. She clearly prioritises those relationships over other friendships. Especially those with girls.
She was fully aware that what she was doing was wrong. That's why she sought Antons approval. That's why she made Tommy promise to not tell MM, before she told him. Because she read the situation and knew it would be bad.
She could be just a but of a shitty person. Or we could go through a whole load of different diagnosis. She could be a narc, she has shown some signs. Her refusal to accept Tommy was speaking his own mind, because it conducted with what she wants. There could be ASD, it could BPD. The stuff she doesn't get, again could be a sign of a narc. She may just not have empathy.
Or just how she is. Personally I think throwing around diagnosis doesnt help.