Bobby - was looking at your diet thread last night and have to say that Im WELL impressed mate!!
You have done incredibly well and I can totally understand where you are coming from with the whole insecurity thing, I was actually wondering about this when I saw the transformation coz to be honest, I can totally see why you get the eye contact and smiles! (Not flirting - honest!!)
Anyways....
The insecurity thing is only to be expected I reckon. You have changed on the outside but not on the inside, coz you are the same person - its just that the 'wrapping' is a bit different.
And seeming as you only see what everyone else sees when you look in the mirror, its not all that suprising that you over criticise yourself.
However, what you are forgetting is that your girlfriend loves YOU, meaning all of you - on the inside and the outside. The way you look may well have had a fair amount to do with attracting her, but in my opinion most people love one another for other things than just how each other looks. Every person has untold amounts of qualities including things like character, sense of humour, feelings, emotions, heart, soul - I could go on all night!
What Im trying to say is she doesnt just love you for how you look - she loves all of you!!
Remeber this when you feel insecure, because you could look like Brad Pitt but without heart, soul and character then you can never truly be loved!! And I would say its pretty obvious that you TRULY are loved!!