*gets out abrasive sandpaper rub rub*
Your comic premise is one I haven't seen before. I'm not much into romance or chick-flicks, but the story is a lot more interesting on the surface than two guys starting a webcomic, or the mysterious stranger who kills people. It will be interesting to see where you take this and how you develop the story.
I'm not a big fan of the scribbly line art or the borderless pannels, but that's my opinion. It's unnerving. It's your art style and I wont say it's bad. The actual anatomy, etc. is alright.
However, if you want to take Scott McCloud's* advice, you can use that to your advantage. I recommend having very regulated, precise pannels for the memories/flashbacks, and cleaning up the art so instead of scribbly lines, there's just one think one. The emotional scenes of the present can stay how they are. This will exagerate the difference between the two, the orderly, comfortable, controlled with the exposed, unnerving, and insane. You are already doing this to an extent.
As always: Your webcomic = Your choice, do it because you love it.
*Scott McCloud has written some very good books on comic theory and comic writing. Making Comics, Understanding Comics, and Re-Inventing Comics.
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