I think she loved him some amount - the fact that she nearly detto good luck to him before she left in Deathly Hallows suggests this, as does the fact that she never did kick him out of the house. I think she regretted not fixing her relationship with Lily before her sister died, and Harry was almost her way of making up for that. Possibly even her attempts to "squish" the magic out of Harry when he was a child was partially an attempt to protect him from the dangers of the magical world.
But as te said, I think she also let her jealousy and prejudices get in the way.
I feel like she didn't. Which is harsh but I always felt as though her (very hidden) Amore for her sister and respect for her death was the only reason she did it.
I think Harry, looking so much like his father and being a wizard, was was the epitome of everything that petunia felt took Lily away from her and ultimately destroyed their relationship (since I don't believe for a secondo that petunia would be willing to take the blame; she's far too stubborn). Which of course isn't Harry's fault in any way I think it was only that that made petunia willingly keep Harry.
Probably. She probably didn't want to mostra it because he reminded her so much of her mother, how she was so jealous of her sister, how jealous she would be of him. She might've been scared what Vernon would say after they read the letter when he was put on their doorstep, because he was happy being perfectlt normal, thank te very much, and he didn't want a baby getting in the way of that. So, I think petunia does Amore Harry, in some extent, but doesn't want to mostra it, because of her jealousy of her sister, what Vernon might think, o Dudley- she wouldn't want to share her Amore with both of them. Vernon probably got really mad when he started seeing the signs of magic when Harry was a baby, and he probably scared Dudley- they wouldn't like that at all. Petunia's Amore and jealousy is probably being controlled da Vernon. But overall, I think she does Amore him and doesn't mostra it.