2♠ making.
east 3♠ same argument. you have no reason to think that 3♥ will go off, but you have 7 tricks in your own hand: if partner can come up with just one trick, you're only one off, which is a great sacrifice if 3♥ is making. and on a good day, 3♠ might even make!
south pass difficult. can you make 4♥? say your partner has absolutely solid hearts. that's 6 tricks plus your two outside aces. eight. two more needed. if partner were strong enough to provide them as well, she would surely have bid to game on her own. could be a level too high ... on the 