I'd be happy to apologize for that, but Higurashi isn't going to care.
She hates me now I'm sure.
Wanting to apologize is a good thing, and wounds may heal with time. If your ban is only temporary (Based on other posters thoughts, I believe it is), I strongly suggest learning your lesson and watching your language next time in chat.
Also, you're on the verge of a different topic than the one being discussed here (Rudeness in Random PvP), which is why you are being asked to take this to PMs.
PvP1/Random PvP is a an area we have little to no control over due to lack of filters, mods, or any thing of the sort.
Chat is an area where we have moderators, and they would like people to observe some basic manners like limiting foul language and avoiding very long rants all in caps.
[ontopic]
I've wandered onto PvP1 a few times, sometimes I got an ignorant player calling me inappropriate names. However, on the bright side, there are good players there too - I remember my last PvP1 match being against a guy with a Mindgate/Lobo/Phase Shield deck with my deck being a very bad Fractal Charger variant - the guy was in a good mood all the way through (even when his Phase Shield ran out) and responded to my "gg" before the match ended.
So overall, PvP1 is a chancy gamble - sometimes you'll get a good soul, and sometimes you'll get a troll. Sadly, we can't control this.
Like Pika, will, and TFO, I rarely/never do PvP1 anymore - now that I've started playing in PvP events like League - it's a lot easier to find people willing to play with you and not cuss the whole time, as well as having built effective decks that test your own skill, or at least decks built by others you know will give you a fight