Make friends, Make enemies., But less messier maybe? Options

[ImHiPotion]

I've been working on this from last night until now, the general concept is easy enough but there are a few questions I need to ask.

The concept:
Most actions you make determine who you are friends with and who doesn't like you.
To do this I have made it so that everybody who you can make friends with has their own variable, when you do something good it adds 5, if bad -5.
If the variable is more than 75, they are good friends (Learn new skills and/or stats go up) if it is less than 25 they don't like each other. (Stats go down)
Simple right?
However when you are doing this process for about 20 - 30 event's it gets messy, especially of you want to have it so that some events make some people go up and others go down.
When trying to account for EVERYONE it gets hard to control and making every possibility becomes hard to keep track of.
So I guess the main question is; How do I clean this up a bit. So far I've only tried this system with 3 events on 1 page, in the end it will become a nightmare.
Is there another approach I should take to this sort of system?
Sorry that I don't have any screenshots at the moment, I'll upload them tomorrow.
Sorry if it seems confusing too.

[Chaos_Martin]

This reminds me of your reputation like in Fallout new Vegas. Could you explain in more detail please? Like the stats?
Oh have you tried using common events?