@jim 1968,
Well, here's the thing.
Your primary relationship as an adult should be with your partner, not your parents. You've consistently described parents who are not supportive of your relationships - and they should be doing that. They should be encouraging you in your relationships. If they can't do that, you have to consider why you are allowing your parents to continue to manage your relationships.
That you've become depressed is not a surprise.
Sometimes there are parent/child relationships that don't progress to adult/adult relationships and sometimes people need help getting to that point. You may need some one-on-one counselling/support to get there - and to deal with the depression you're experiencing. If you've got coverage for any counselling support from work, consider at least having one session.
And maybe, maybe, in the meantime - realize and accept that there is no point in introducing women to your parents. Keep them away from the negativity. There's no upside to it.
It could result in better relationships for you - and perhaps a relationship with a woman who will be your primary emotional support in times of illness.