Sweet Talk's Links
He only continues to shop at Doux's store due to there not being many options for his 'needs'. He drops his persona completely around this stallion, since he simply does not like him. He has no plans on hurting the other, but he finds it ever so tempting to stab the other.
He supplies the other pony with sedatives and various other potions. He enjoys pushing the other's buttons, but is careful not to tread too far. After all, he doesn't want to lose business.