Nothing wrong with swallowing one's pride and getting back on the TEFL trail. It'd do him good and he could put right all the things he did wrong whilst residing there.
1. This time, don't live in a concrete box room, spend a bit more and enjoy a bathroom where you can swing a cat (though I wouldn't condone cruelty to any feline being) Live amongst the real people, the vendors, beggars, the office workers etc, plenty of cheap blocks along Ramkamhaeng
2. Enjoy the crack with fellow TEFLers, don't have so many hang ups about these so-called losers who have burnt their bridges. Buy them a beer when they're a few days from payday
3. Make it up with Kenkannif before you go. I believe there are direct trains from Bournemouth to Reading. He'd appreciate it I'm sure and he could even put in a good word for you to get back on that lucrative TEFL ladder
4. Go back to McDs and get them speaking english properly. Many teachers do just what they have to and no more, but redemption is the key here, so be proud of those students when they are able to ask farang customers with clarity if they would like 'super size'
5. Get a few contacts from your hi-so relatives, surely this would serve as an additional foot in the door should McDs not be hiring, or ajarn.com have blocked you and all associated IPs
6. Make some real friends, go to a bar in Soi Cowboy or Walking Street, ring the bell, buy the drinks, you'll make friends in no time.
7. Become that thaiophile you detest (apparently) and see what it's really like, you might enjoy it, before long you'll be fighting your case on Teakdoor against people like yourself (as you are now, that is) stating your case as to why Thailand is that utopia everyone craves to be in and how shit the western world is.
8. Get a bargirl GF. Lose the plot, sign over your life savings. Then when it's over, get her Thai BF to throw you over the balcony.