yeah, I'd like to point out that one of the reasons that there is awkward silence in amateur films is that they don't really work on the soundtrack too much. Pretty much all the dialogue in this should be re-recorded in post production and also have extra sound effects and Foley to set the mood audibly as well as visually.
I'm not being facetious either. About 80-90% of all audio you hear in western movies are re-dubbed in post production due to a bad recording on location or audio clean up is necessary. Also, the golden rule is that in movies, everyone wears hard heeled shoes. so in Post, record some footsteps and maybe some cloth movement from their body to give the extra effect that they're moving. If the audience doesn't hear slight footsteps in the mix when someone walks, it doesn't gel and takes them out of the environment. This goes for every sound you make. Exaggeration is key.
This sort of stuff might not improve the narrative flow of the piece, but will bring the audience more into the film in terms of audio.
And remember, Audio is 50% of a movie, so don't neglect it.
Some of the shots weren't bad. The best probably being at the scene at 1:35. That said, all of your shots were quite dark and I think more attention needs to be spent on the lighting. I know there's some tricks you can do on the cheap with household lamps and things.
The acting is not brilliant, but this is very typical and there isn't really anything anyone can say to help that other than "get better actors" or "do a movie that isn't actor/dialogue heavy"
Basically it's not a bad effort and I salute anyone who tries to make a short film period. There are things I like, such as the story being straight forward and concise, but yeah there are some things you can do to improve this. But maybe they are things you can work on for your next movie! Learn from each creation