Yes, a three some with Hal Jordan and lady Blackhawk is beneath both of them. For one very importan reason. As Gail mentioned earlier, Lady Blackhawk and Huntress are both friends, having a threesome with one of your friends changes the dynamic of said friendship.
another reason I see is that again, that is throwing Huntress back to her use as nothing but a glorified blow up doll. Yes Gail wrote this story, but if you are going to post this, post the all the pages that are in context with this story so that people know that this moment changes Huntress. It is in this moment that Huntress sees that she hit the bottom.
She doesn't even really know the guy,the guy is basically a pig at this point, calling her honey and stuff like that. So she is not going to take her mask off. She slept with him because she was finally connecting with other people on a real level, the first people she has know that actually had the potential of being friends with her, and she messed up. She accidently offended Dinah, and Dinah intentionally offended her.
Would Lady Blackhawk have slept with Hal while drunk? maybe, they are both pilots, and heroes. they might struck up a conversation and then gone from there.
Helena and Hal? no. Helena, Hal AND Lady Blackhawk, hell no.