Snippets...
Hugh Arundell Trevanion was called to the bar, November 1881.
[The Times, 18 November 1881 p10]
He appears to have been charged with bankruptcy in 1886.
[The Times, 19 May 1886 p13]
...and then met with his creditors.
[The Times 5 June 1886 p15]
And, yes, he and Florence Eva were previously married. Details of the divorce proceedings were published in The Times, 27 October (page 3) and 12 December 1887 (page 3).
Clearly their second marriage didn't work out either. In 1908 she petitioned the court to send Trevanion to prison "for breach of an undertaking given to the Court on January 27, 1908, whereby he was not directly or indirectly to molest or threaten his wife".
[The Times 26 May 1908 page 3]
Full details of their second divorce appeared in The Times on 4 July 1908 (page 5). The article mentions that their first marriage took place on 10 June 1882 at the Chelsea Registry Office, and their second on 20 July 1900 at the Kensington Registry Office. The first marriage was dissolved by decree nisi on 10 December 1887, absolute on 26 June 1898. (Trevanion's second wife had died, leaving them free to remarry in 1900). Curiously Hugh Trevanion is referred to as Captain Trevanion in this article.