“Assure her also as a last & indisputable proof of Warren’s indifference to me, that he actually drew that Gentleman’s picture for me, & delivered it to me without a Sigh.”
letter to Cassandra
January 14, 1796 
Jane was referring to John Warren (who is portrayed in Becoming Jane as Jane’s incredibly awkward suitor, a la Mr. Collns). Others thought he might be in love with her but she believed him to be just a friend. The picture he delivered was one of Tom Lefroy.
The last reference Jane made to Tom was here, where she talks about “flirting her last” with him.
I’ve now posted every quote about Tom from Jane’s early letters. There’s actually very little. We will never really know how much her heart was involved — although, of course, it’s a fun story to tell and fun to speculate.
If you’ve seen Becoming Jane I would love to know what you thought.