I don't know how to better say.
- I don't know how to better say but it's over. / Не знаю как лучше сказать, но все кончено.
- Do you mean it's over between us? / Ты имеешь в виду, всё кончено между нами?
- Exactly. / Именно.

I don't know how to better say.
- I don't know how to better say but it's over. / Не знаю как лучше сказать, но все кончено.
- Do you mean it's over between us? / Ты имеешь в виду, всё кончено между нами?
- Exactly. / Именно.