Is this fine?

Hello! Bullet.

I lose first 3 games. Then I start winning some, in 1 game he wait 45sec to deliver checkmate in 1 (last second). Then I win even more, finally got momentum - won 3 in row.

I ask rematch. He intentionally opens another game in new tab and doesnt leave the room with me or decline re.

#1: If someone Stalls You (AKA, Purposely Waits Before Moving In Order To Annoy You) You Should Report Them At lichess.org/report And Explain What They Did Wrong.

And Be Sure To Capitalize Everything!

@Terinieks
No, that's not fine as it's against the terms of service. Better report the player to Lichess: lichess.org/report explaining the reason for reporting.

@Terinieks said in #1:
> Hello! Bullet.
>
> I lose first 3 games. Then I start winning some, in 1 game he wait 45sec to deliver checkmate in 1 (last second). Then I win even more, finally got momentum - won 3 in row.
>
> I ask rematch. He intentionally opens another game in new tab and doesnt leave the room with me or decline re.

Sounds like a jerk.

@Terinieks said in #1:
> Hello! Bullet.
>
> I lose first 3 games. Then I start winning some, in 1 game he wait 45sec to deliver checkmate in 1 (last second). Then I win even more, finally got momentum - won 3 in row.
>
> I ask rematch. He intentionally opens another game in new tab and doesnt leave the room with me or decline re.

U already have a bullet rating of 2100 and so