Thank you! And yes, haha, I wasn't quite sure what to classify it as, either, especially considering how it ends.
As to ending types, I'll try to be vague enough not to spoil too much but anyone who hasn't played **SPOILER ALERT**!
The main different endings are affected by 1. Where you go in the middle (you can be cornered) 2. If you get a gift when visiting the couple 3. If you accept Mirror's request 4. If Gina trusts you 5. Pending the other items, your own contamination level is taken into account.
Overall if you 'succeed' in the first four having high scores/trust, you will get the 'happy' ending. But yes, fail enough of them and have high enough contamination and it can go quite horribly. As to specifically how many ending differences, it depends what all is counted- but I would say about six.
Thank you again for playing and for the feedback!