Fill in the blank (_) in the following sentence from the following choices.
Sentence: After proposing, Justin is not sure about his relationship with Brett, who ignores him. _ feels unfriendly.

Choice 1: After proposing, Justin is not sure about his relationship with Brett, who ignores him. Justin feels unfriendly.
Choice 2: After proposing, Justin is not sure about his relationship with Brett, who ignores him. Brett feels unfriendly.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
2
1.