avenue, i think university can sometimes be quite boring and 'lifeless' at the weekend for some - different if you're doing a sport, perhaps but a lot of the action is during the week (another unspoken truth about university! Obviously as term goes by it can be a time to get work done!)
So going away for a weekend is fine - so is coming home if the fancy takes you.
897 I think it often takes more than a week to settle - it isn't very long at all. Sympathies, it's difficult when they're away and you're worried. Is ds' girlfriend going to visit in the near future, or he come home for a weekend?