Light Novel retailers never list stuff as completed/stalled/axed without the publisher telling them so. Otherwise, the volume 3 listing is for the manga adaptation. The Light Novel's third volume came out back in 2019.
Whether the Web Novel is ongoing doesn't really matter if the publisher dropped releasing the Light Novel.
Super dense MC romcom, huh. The premise at least sounds cute, though, but I hope it's not going to maintain that premise the entire volume...it'd be a bit boring if he just kept being unaware and she just kept staring.