Maybe...she actually likes/loves the 7-years loser, in all his loser-glory (and much about him, we, and I'm sure Av007 will never know)....and Av007 provides a fluffy distraction of 'what ifs' when she's in the need for frivolous affirmation?
She may like feeling like she is wanted, has 'other' choices, such that she may feel even more secure when she settles on the 7yrs loser. People can be fucked in how they test the theory of love for themselves. Right or wrong. Fucked.