Edward realized that Tess had no idea why he wouldn't pour her wine.  He had made a mistake and he felt really bad over it.  He couldn't explain to her what was wrong with Jessica there but he would when they got home.  It put a real damper on the meal.  He cared deeply about Tess and would never deliberately hurt her.  He knew she was jealous of Jessica but in his thinking, that was different.  He really wanted to enjoy the meal and both girl's company but the evening was dead.  He was polite to Jessica and still looked forward to more cheerful interaction with her but it would have to wait until he could get things straightened out with Tess.