Instead of ladder theory, I have a texas holdem poker theory.

Relationships, as well in life, we have to make with the best with what we have. Just like the cards that we're dealt with on a poker table.

Fold.
Feign.
Follow.
Up the stakes.
All out.

Off course, a good stratagem I carry for myself is that I would never repeat the trick a few times and always play to your strength.

Personally I find being friendzone isn't as bad as it sounds, as for me I think it's a waste of time trying to analyze what went right or wrong as long as you're doing your best with what you have.

I myself have been friendzone twice, and both times I just look at the bright side and try something else instead, and not being downhearted just because my feelings and effort weren't being appreciated.

The 2nd girl that friendzoned me became my girlfriend after we lost contact for quite a considerable time.

TLDR: Analyzing theories are a waste of time as relationships isn't science. So go out, meet people, and have fun.