Flags like in Visual Novels?

So I'm making this game (RPG Maker VX Ace) and I placed all these hidden (and some not so hidden) events that will "Develop" your relationship with yer party member, there's a total of 7 of them.

Now if the player gets all these events, or "Flags" as I like to call it, then it'll change the outcome of the chapter end event. The question is, how do I put all those 7 events to trigger the "Hidden chapter end"?

______________________________________
My idea is for the event is

-Page1-

*Put normal end here*

-Page2-

[switch flag 1 is on]

[switch flag 2 is on]

=

Self Switch A on

-Page 3-

[switch flag 3 is on]

[switch flag 4 is on]

[self Switch A is on]

=

Self Switch B on

-Page 4-

[switch flag 5 is on]

[switch flag 6 is on]

[self Switch B is on]

=

Self Switch C on

-Page 5-

[switch flag 7 is on]

[self Switch C is on]

=

*Put secret end here*

______________________________________

Am I doing this right? I'm new to RPG Maker.  :|

Use variables.

I'll second what Nathaniel B. said.

If you want to represent, say, a relationship level, pick a variable and call it "Relationship Level"  (or "(Name's) Level")

When the PC does something that increases the level, use a Change Variable call to increase it by 1.

If you then want an event to act differently, use the setting "Variable (name) is greater than (value)" on the Event page.

This also has the huge advantage that it remains consistent across maps in the same game.