Thank you so much for playing and for taking the time to review! And no no, your review is not a mess and your English is just fine! I'm so happy that you enjoyed the VN and that you were able to catch the little details I put in! ^^
SPOILERS !!
I'm really happy to hear that it feels close to the original UT spirit; I was striving for that! And I'm glad you caught the repeated phrases. Especially "cause someone really cares about you" and how it turns into "cause i really care about you" to explicitly refer to himself. In a way, that's him finally admitting and committing to how he feels about you. He's accepting his own feelings. :3
Honestly, I felt so bad writing that whole "cheating" part for the secret Papyrus route. But that's something that a jerk like Flowey would say. x_x
Also, I can answer why you weren't seeing Sans shake the player's hand or Sans not mentioning the past connection of SOULmates during your second run. When you finish True LOVE the first time, Chara completely wipes out all of those connections. And even if you try to do True Love again, you don't actually complete it because Chara/the player kills Sans, thus stopping True Love from completing. So because of that, it's like you were never Sans' SOULmate and you can never become his SOULmate again.
The number for the SKIP function is actually counted. XD I coded a function that will count the number of times the player uses it. And I'm glad you were able to figure out that you had to drag the textbox to find the last FIGHT button! :D It always makes me happy when people are able to figure it out! I’m glad you liked the animations for the Sans fight, too! That was all done via Ren’Py’s ATL (animation and transformation language). In addition, if you were curious about the 4th Sans CG... then I did my job right. =)
And I know the epilogue leaves so much. Trust me, I want to see more of what happens, too! But I felt, for Dating Start, that was the best place to end it. Your story with Sans is just beginning. And, when you leave that world, it's up to you regarding how you continue the story in your head... or in the game if you come back to RESET.
If you do come back, Sans realizes you might be there to RESET. And he accepts it and just goes back to sleep, awaiting whatever happens because he cannot control it.
I would love to make an original project one day! At the same time, I want to make more Undertale VNs, too! (Maybe a bit shorter, but we'll see where my imagination takes me!)
Thank you again for your wonderful words and for playing the VN. I'm glad it warmed your heart with love.
Edit: Oh! I also forgot to mention! The backgrounds are straight out of the game. ^^; But I used the tilesets from the game to make new backgrounds like Papyrus' maze.