i think you are being too literal, she said "pratically telepathic"

but i think she means, like when you know what your signifigant other will say before says it type of thing

No offense intended, but you're really showing a lack of experience in relationships (life?) here . . .

Communication is not always verbal - in fact, comm theory tells us that nonverbal communication can account for anywhere from 50% to 80% of meaning. This is what "telepathy" means - being able to see beyond the words, understand your mate's patterns and tendencies, and understand when something is wrong (even if they won't talk about it).

It's one of the most difficult things about relationships - going beyond 'honesty' to 'openness' is hard, and many many people can't handle it.