Sounds like you are just a "habit" to her if she doesn't even enjoy spending time with you anymore. That's love/companionship and doesn't sound like she has that. I don't care what I'm doing, I want my husband with me (if he wants) and we've been married 18 years so the "passion" is not so passionate necessarily :-) either. It's "easier" to have someone around and sounds like your girlfriend just likes that ease, doesn't care much about "you" at all. I'd propose another break and look for someone who would be interested in you for you.