I don't think so I doubt that her father would let him give such a nickname to his daughter.
Yes he must have seen her showering or changing like: making up some excuse to see her since he was so close to the family hmm but he must have failed in his plan to get her very drunk it's pretty evident he put some something in David's food but his plan failed because of it.
He must have exaggerated the dose the old fox must have thought a lot with his head down that must have helped his fault yes I think her father already knew about the desires that the friend had for his daughter speaking of which it would be good to see some flashbacks of that part specific so that we have concrete proof if Ana's old man died naturally or someone planned it. I just know that this whole story is very strange that Mr. Stenstromber managed to pass Hank's perversion levels by the way he is much worse than Marvin. Even though he's a desperate old pervert, he's not as bad as this old fox.