Hi Nikki - Oh, I love Thai food, but, have avoided it since being on SW (well, eating out, I'll do a Thai style at home)
would go for soups to start (not creamy coconut),
Poh taek (mixed seafood soup) , Som Tum (spicy vegetable salad)
Avoid red/green curry - too much coconut milk

(the best bit lol)
go for steamed/baked fish, noodles & stir-frys....
Pad thai, fragrant rice,
Hor neung mok pla (hot & sour steamed fish, Pat gaprao gai (minced chicken with chillies and lime leaves)
Maybe just nick a few spoonfuls of the really naughty stuff from your dining companion, so you don't miss out.... or take it as a flexiday
Hope you have a great time