Thank you for playing my game - and making a video too!
It's always instructive to watch how different players approach the same problems.
It helps me to understand where I could have done better.
First of all, key bindings should have been explained more clearly, and maybe remain accessible during the gameplay: for example, at some point you were middle clicking (apparently) without outcome; but that's just because the rifle was already loaded, actually. :D
Yes, dialogues start again after few lines: but there's alway something emphasizing the moment when they wrap around (most characters say "Anyway..."). Moreover, they change over time: if you talk to the same character after a while, it is absolutely possible that they tell you different things.
I learned quite a lot from this first game: above all, what mistakes avoid in the future! :)