There are four endings in this game.  Two are neutral and the other two are romance routes.

start

     "Maybe I really do want to see him..."

     -romance route

     "I was just curious. That's all."

     -neutral route

-unlock CG 1

     "You're not cute anymore."

     -neutral route

     "You look...different."

     -romance route

-unlock CG2

     "I'm glad you're here."

     -romance route

     "You're very useful."

     -neutral route

     "He's kinda hot."

     -romance route

     (AN: Sorry, I just wanted to simp)

     "I should help around the house."

     -neutral route

-unlock CG3

     "Yeah, just slightly uneasy."

     -unlock CG4

     -romance route

     "I feel very disturbed."

     -neutral route

     "I know you're just messing with me."

     -neutral route

     "Am not!"

     (AN: A very tsundere response)

     -romance route

     "I don't care..."

     -romance route

     "Good on you."

     -neutral route

-unlock CG5

     "What are you doing?"

     -romance route

     "I don't like it."

     -neutral route

     "No, I don't want to."

     -neutral route

     "What the hell is that supposed to mean?"

     -unlock CG6

     -romance route

-unlock CG7

ROMANCE ROUTE

     "I think I like you."

     -unlock CG

     "Do you... like me?"

     -unlockCG9

NEUTRAL ROUTE

     "We're just normal friends, right?"

     -unlockCG10

     "Why do you keep flirting with me?"

     -unlockCG11

THE ENDDDD

Here's a pic of Ross