should i contact her, or should i let her come to me?

so i was dating that girl, we dated a few times, no kissing or nothing happened between us, but there was kind of an attraction between us, we had some little misunderstandings though, regarding stupid stuff, and then i felt her back off, and she stopped pursuing me anymore, she doesn't text me, her replies to my texts got shorter and shorter... you got the point.

so it's been one week we didn't talk to each other, and she traveled outside the country for work. do you think i should contact her , like send her a little text saying: "hey, how you been" or anything like that, or do you think i should just stop contacting her and let her come to me, and give her space to decide whether she wants to come back or not?