I agree. I think it's becoming clear she went to the Queen too soon as she wasn't certain at that time the DUP would support her. If you're not sure whether you can form a stable (yes, that's the actual word!) administration the Queen has to issue a sort of conditional yes and you go back when you're sure. (It happened with Alec Douglas Home.)
And yes, at least trying to come to some sort of collaborative arrangement with the other parties would be a more satisfactory approach before putting us in hock to the likes of Ian Paisley Junior who said "I am pretty repulsed by gay and lesbianism. I think it is wrong. I think that those people harm themselves and – without caring about it – harm society."