Hmmm..."I dont know, my husband deals with all that" ? Sounds like she may be trying to spare your feelings with that one, and coward herself out of an awkward situation.

Did you hit them up for weed often? If so they may be feeling used (though, they should be understanding if they're smokers) which could be why they are pretending to not pick up on your not-so-subtle hints, you know?

Definitely sounds like something more is going on. I'd ask for a straight up answer, and prepare yourself that you may not like what your gf and/or her husband may say, but at least then you would know and could either clear up whatever the problem or misunderstanding is and you can stop wasting your time with hints and whatnot.

Good luck, that really sucks.