Whether the relationship be new or has a bit of history, how would you feel if your significant other was not returning phone calls or text messages for a whole week+ time? Would you be upset? discouraged? hurt? annoyed? angry? worried? consider it over? Obviously it wouldn't be proper to contact the person every day; make one or two attempts then wait two or three days is more appropriate.
What would you do about it? Perhaps some of it depends on the person/relationship/situation, but a week+ time seems like a long time to not throw a frickin bone.
Most Helpful Girl
As you said, it depends on the person/situation/relationship. Still, I think that warrants some real consideration about the status of the relationship (especially if this behavior is a more recent development). If you have left messages/texts and they are taking over a week to respond, there may be something going on with this person that you need to know about. Of course you can't know what is really going on if they don't call/text you back.
What they're doing is impolite, hurtful, and inconsiderate. Even if having a crazy schedule was preventing them from having a long conversation with you, it takes 2 minutes to phone/text someone to explain that they are swamped, feeling ill, or in need of some personal time and will get back to you as soon as things clear up.2