[lojban-beginners] Implications of partly negated, commutative logical connections

[namor <eldrikdo@gmail.com>]

Hi,
I'm looking at:
{mi nelci do .ijanai do prami mi} -- I like you if you love me.

We should be able to swap the structure. So it's:
{do prami mi .inaja mi nelci do} -- You love me only if I like you.

These two structures - and therefore their translations - should be equal,
but this is very very unintuitive to me.

The first structure sounds to me as if "your liking me" is a cause for "I like 
you".
The second structure turns cause and effect upside down in my head.

Did I make a mistake?
If not, how to better translate the structures, so that the mean the same..?

How to make clear what is cause and what is effect with logical connections?

-- 
mu'o mi'e namor
.i mi to'e djica lonu miptera