I'll give it a try!

1) Some Pemberleans have suggested before now that Lydia might in fact have some money, which would be better than no money at all for a man on the run. (She must have been supplied with *some* pocket money during her prolonged stay, though I also wonder how long she would have held onto it!)

2)In Elizabeth's opinion, yes. In ch.46, we have her thoughts:

Never, since reading Jane's second letter, had (Elizabeth) entertained a hope of Wickham's meaning to marry (Lydia). No one but Jane, she thought, could flatter herself with such an expectation. Surprise was the *least* of her feelings on this development. While the contents of the first letter remained on her mind, she was all surprise -- all astonishment that Wickham should marry a girl whom it was impossible he could marry for money; and how Lydia could ever have attached him, had appeared incomprehensible. But now it was *all too natural*. For such an attachment as *this* she might have sufficient charms; and though she did not suppose Lydia to be deliberately engaging in an elopement, without the intention of marriage, she had no difficulty in believing that neither her virtue nor her understanding would preserve her from falling an easy prey.

3) I really don't think so. Others have suggested at the P&P board that Wickham was deliberately trying to sabotage Elizabeth and Darcy, but how could he know that Darcy was interested in Elizabeth? According to Ellen Moody's chronology from the P&P FAQ, Elizabeth, Wickham and Darcy met together exactly once on November 19, where Darcy and Wickham were focused on each other, then after the Netherfield Ball (which Wickham did not attend), Darcy left Netherfield by November 28. After Elizabeth's return from Hunsford, Wickham discovers that her opinion of Darcy has improved, but that's far from suspecting that *Darcy* might be seriously interested in *her*. In fact, IMO Wickham would be acquainted with the "old" Darcy's standards for a wife, and would know that he would normally never be interested in a girl like Elizabeth. Also, what would make Wickham think that Darcy, of all people, would intervene on Lydia's behalf (until he actually showed up on their doorstep!)?