It can become like a road that's too well traveled, IMO. I have connected to this film unlike any other. Words fail me. I want to write a book on the feelings this film evokes, but I don't want to bore everybody.
I did view BBM constantly the 1st two weeks I had the DVD (I did not catch the theatre release, Tucson is sort of provincial). Once I got over feeling heart-shot (to use an 'Annie-ism'), I could explore the relationship between Jack & Ennis a little more objectively. Now, for me, it's become like an old friend who has a new little subtlety to show me each time I see him.
I suppose one can overwtach the film and then it beomes ennui - yes, even BBM. So I watch it now about once a week. I still see parallels to BBM in my own life all the time, though. Sometimes it takes me by surprise and I feel like the wind has been knocked out of me and then I must see the film again to comfirm the connection.
Damn you, Ennis.