My therapist accomodates me whenever possible and as best I can tell, she thinks it's definitely positive and a sign of strength to ask for what I need from her. As far is it not being a crisis, she has specifically told me I don't have to justify wanting to contact her: I don't have to be suicidal or anything. If a session will help me feel better, it's reason enough. I must say too, once every other week isn't a whole lot, so.... I really don't see any issue whatsoever or any chance of it appearing problematic for you to ask for another session, not that I would anyway, but you're already at a really low frequency. Hope things get better soon.