Girls text language. Is it true?

Most definitely true.

It depends on the context of the message. Commonly, however, this is pretty accurate.

Usually true except when a girl says "oh" she is usually hurt by what they said

Mkay.
That's one I use when I'm being sardonic.

Usually for me, the k is short for ok, whatever means I'm cool with whatever the other person wants to do, and oh means I feel like I've been punched in the stomach (I mean I think the last time I used it was when my crush confirmed she was straight and I died).

I use 'I guess' to give the other party - mostly my husband - the chance to change what he said to what I want/need him to say...

From experience, "oh" can also mean; "that's nice, but not really interesting."

Yes , yes it is

ok :( <insert forever alone face here>

I guess

The oh is not true

For early 20s and younger

Not really, for me anyway. I just write whatever comes to my head first as if it's a face to face conversation. I say oh, fine and I guess in ways I don't mean to be rude, although I'm pretty sure it may come across that way accidently.

The words form a sentence no matter how you arrange them

Not for me.

All except for "oh" which usually means "I'm crying in a corner and its your fault"

Yup

SOO TRUE