Maybe this belongs in the unpopular opinion section, but I am rooting for Luanne.
I just rewatched the special Bravo aired about her life prior to the show. It seems she has struggled for a very long time - minimally since the car accident which prompted her to return to the states - and possibly longer if the Count was sleeping around early on.
It seems like its been one loss and/or misstep for her since then - other than perhaps the time she did tv spots for a local tv station upon her return and then landing the gig with RHNY.
She says moving back to the states was the beginning of the end of her relationship with the count.
Divorce, big drop in financial status, failed relationships, no real career of her own, etc.
To me, I think Lu has been fighting to find her own identity while trying to retain a luxury lifestyle. She seems empty, desperate and fearful. That mindset caused her to make bad decisions (e.g. Tom, drinking, etc.) and I think the way she has been behaving to her friends is a way of boosting herself up without realizing it is at the expense of others.
If I met Luanne on the streets, I'm not sure I'd like her too well. But, I do think she is very fragile and likely just flat-out tired after years of trying to make her way after the car accident.
I think she wears a thick coat of armor and equally thick blinders. She could use long-term, intense therapy to help her cope a little better.
She said in the special that she doesn't dwell on the past. I'm not sure that is a good strategy because it seems she has a lot of unresolved crap she's lugging around that she's not dealing with.