What really made Ron and Hermione always had a row in book 6?

[stephab67]

No: HPFGUIDX 178623

> biancawatanabe_123:
>
> I can't really understand what made the two of them to quarrel and
I
> don't understand why Ron was acting so odd as well as Hermione. If
> someone could just explain--?

stehpab67:
There were a couple of reasons.  The first came about because Ron
got into an argument with Ginny because she was kissing Dean in
public.  Ginny, to spite him, told him that everyone except for Ron
had already kissed someone, even Hermione, who kissed Viktor Krum.
This played right into Ron's continued insecurities regarding
Hermione and Viktor.  He then started acting very badly toward her,
but didn't tell her why he was upset with her.

The second reason is that prior to a major Quidditch game, Ron was
really nervous.  Harry, trying to help him, faked giving Ron the
Felix Felicis potion.  Hermione saw this, and thought that Harry
really had given it to Ron.  After Gryffindor won the game, with
Ron's many spectacular saves being a critical factor, Hermione told
Ron that the only reason he was able to save so many goals was that
Harry had given him the Felix.  Harry then confessed that he really
didn't give Ron the potion, which made Ron upset with Hermione as he
interpreted her comment as saying that Ron was incapable of
performing so well on his own (I can't say that I blame him for
thinking this).  Ron immediately took up with Lavender, which then
upset Hermione.  I think this was sometime in November, maybe
someone else has a more accurate timeframe.

After that, Hermione refused to speak to Ron, even after he
attempted to make up with her after winter break.  She didn't speak
to Ron until he was poisoned on his birthday by the mead in
Slughorn's office.  They spent about four months or so not speaking
to each other.