I think it's bordering on a problem, and this is coming from someone who was on the road to 'problem' not too long ago.
Her recent post about a bad mood because she said she wouldn't drink this weekend and then wanted a drink, followed by having fun, said it all.
I was in that place, where I drank maybe two bottles of wine every Friday and Saturday (my other half was always in and rarely drinks - kids were fine). If he wasn't in I'd maybe still have a glass or two. Then it was maybe a glass or two midweek, not always wine, to deal with a difficult day. I could feel myself actually craving alcohol, realised I was going down a dangerous road and stopped. It was easier for me because my husband doesn't really drink so we had no alcohol in the house. Since the end of September/start of October I've had one night out for a 30th where I drank and two glasses of wine at a family meal.
My weekend are better, my attitude is better and I feel better.
I don't think Robbo has that support from either Chicken Man, her friends (those that she has) or her family (as they don't seem to see her very much). She will end up with an alcohol dependency.