Stand your ground, T3. Don't get caught into peer pressure. Whatever your reasons to not drink (and it does not sound like you're judgmental of people who do) you are entitled to NOT drink or drink minimally, if you choose.
I don't drink much, myself. When I do, it's usually sparingly. Very rarely do I go all out, and I always regret it the next morning (owwww, the pain). So I would stay the sober driver. It seems that somehow my decision to be that person, while at first was seen as responsibility, is now seen as being judgmental.
The question might be not why does your H want you to drink, so much as it might be what does your H seem to be looking for, behaviorally you, that you do when you have a drink or two? Does he seem to think you loosen up? Your inhibitions become lessened? Is there anything you can think of and can you be those behaviours without the alcohol?
Might be something to consider and do, so long as they are in keeping true to who you are...
