Dashi
A sign that doesn't know how to react when it comes with a broken heart, or a piercing pain... It's not that he doesn't experience emotions well, but Aries is overwhelmed by a terrible confusion about what he should do. He tries to tell you that everything will be fine, just calm down, but if you continue, in all honesty, I'm telling you, he doesn't know how to handle you.
Sagittarius
He really wants to help you, to see you happy again, but he tends to lecture you when you're in pain. It makes him seem a little detached from your drama, but it's not meant to make you feel uncomfortable. He probably doesn't have the sweet and gentle way you need to open up and unload your pain. But he will never deny you his help and above all he will do everything you ask to make you feel better.
Aquarius
He's a lot like Sagittarius, but also Aries: he doesn't want to push you away when you bring your pain to his doorstep, but he also doesn't know what to say or do to calm you down. He ends up giving you advice on what NOT to do (which you don't need to hear at that point), he'll tell you about the times he's had it worse (also useless information), or he'll try tease you to go out and do something together. Good intention, pure heart, but awkward reactions!