If he didn't show any interest in the 10 years of your friendship what makes you think he'll like you now. At this point she's going down a delusional path and ruining herself. Karma's a Bitch
Everyone thinks the marquis is not the mcs real father but viennas, but what about Andreas? I think him and the mc look more like siblings but who knows.
I think he's the father of all of them but favors Vienna since she looks like her mom. He probably only got with the MC's mom because he's a gold digger and was two-timing since all the kids are about the same age.
I feel like William would not have talked to Annie if Ashton did not get close to her. Now that they are close he just now realizes his feelings.