I laughed out loud when the dude just pulled a gun on me after I pushed his buttons too hard.
I think this is a clever dialogue loop for your first game! It reminds me of Bandersnatch, in the Black Mirror universe. You should check that out if you haven't! It's fun to learn about how characters behave in a variety of situations at the same point in time.
There are a few typos, but that's not a big deal. I would have loved to see some more complexity in shaping the conversation! It seems like there's a "right" and "wrong" answer to most "storylines" (like the invitation to the park, or the birthday gift, etc), and then you move on to the next one if you don't get shot in the head. It would be cool for the decisions to have longer term effects and special endings for different combinations!
Great work on submitting your first game!