To be honest, this is my favorite Marten comic in a while. It's nice seeing what he does in a day/week. I like seeing him play the guitar, instead of just talking about it every once in a while. I really don't like the Padma/Marten thing, so this whole story arc has not been my favorite. (Even though I'm still hoping that it will end up being helpful to Marten in the long run.) But I do think it's nice to see Marten being more active.
As far as things with Padma go-- I really don't think Marten has done anything wrong. She made it clear she was moving, and she has never said anything to make him think she would take this "relationship" seriously. Even though I think he SHOULD have made an attempt to talk to her about all of this, it isn't wrong of him to just go with the obvious assumption and not even bring it up. He's being nice with her-- it's obvious he really likes her, too, and he hasn't hidden that fact. (He's cuddling with her, making daytime plans, etc. It's not him just using her for sex.) Sure, he might be trying to play it "cool," but he is still showing that he cares about more than just having a fun fling. So, if SHE is unhappy with something, she really needs to be the one to say it. She was the one who put limitations on the relationship to begin with, so it's not fair to expect Marten to pick up on any changes in feelings after that.
Unless we're all jumping the gun and she's really just busy packing or some such thing.