I really don't know what it is about these two but I just do not buy their relationship, not for a minute.
I think Bianca belongs with Liam to be honest, I'm so dissapointed they've split them up so easily. I think Bianca and Heath's relationship feels so forced and fake..... Maybe thats because it was forced by her accidentally having his baby ? I don't know.
She doesn't trust Heath at all,not with anything, he used her little sister for sex solely to make her jealous. Now I'm sorry but to me that screams ***hole ? Not to mention that hes an absolute douchebag. Heath hasn't got an ounc