If your on his backburner, i'd make sure he's on yours. Imo Your not being unreasonable because i'm the same way with a woman. I honestly don't care if my entire life is engorged with things to do I always have time for my girlfriend. This alone makes me tend to believe that his mind isn't totally on you. I'd ride it out if your totally into him,but i'd keep my options open still.. JMO