Difference between 'in the bottom' and 'at the bottom'?

[Sonichka]

1. I guess I'll be on top of you for the next couple of days. Does "on top of you" imply "in charge of you"?

2. "She seems to think some other woman will make my palm sweat, my heart race" Can "make" be replaced by "have"? "...some other woman will have my palm sweat, my heart race"?

3. What is the difference between "in the bottom" and "at the bottom"?

Thanks in advance!

[Milanya]

[Sonichka]

The act is taking place at a fashion magazine. One of the employees, a girl, working as an assistant of the editor in chief, is carrying a huge bag of fake snow. She encounters another employee from accounting. The fake snow is flying away.
Henry: “Oh, man. I’m sorry! It’s you.”
Betty: “Henry, hi.
Henry: “You’ve got a little, um, right here. Gosh, I’m sorry. That was very unprofessional. Oh, let me help you clean this up. “
Betty: “Oh, no, no, no, no! Don’t worry about it.
Henry: “Actually, Betty, you’re just the girl I’ve been looking for.”
Betty: “Oh, no. I’m sure there are other girls.”
Henry: “Uh, It’s about the party. I’m supposed to oversee the budget, so… I guess I’ll be on top of you for the next couple of days. Partywise”
Betty: “Oh, right.”
So my guess would be “I’ll be on top of you = “I’ll be in charge of you” or perhaps it’s that simple “he’s going to keep his eye on her”?
Besides, what does “partywise” mean?

[Nadila]

I want to learn more about idiom...i think its very difficult..
I need someone to want help me to teach about it

[Kitosdad]

" I'll be on top of you ", in this context means, that he will be forever asking you questions about the arrangements that you are making for the party, and how they are progressing.

" At the bottom " could be referring to his partners jealousy, as to why she is giving him a hard time, especially when reference is being made about another female being in the picture.
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