Very interesting observation.
The exact same scenario occurred when I acquired my female Boiga dendrophila dendrophila, but I separated the pair because the female was in poor condition. She's gained weight since that initial introduction, but I think I'll let her build some more reserves before I put them back together.
I hope they breed and give you lots of healthy eggs!
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Roy Blodgett
Green Man Herpetoculture
royreptile@yahoo.com

1.1 Drymarchon corais
2.2 Pseustes sulphureus
1.1 Pseustes poecilonotus poecilonotus
1.1 Lystrophis pulcher
1.1 Boiga dendrophila dendrophila
1.2 Crotaphytus collaris
1.3 Crotaphytus bicinctores
2.3 Pogona vitticeps (snow and red/gold)
1.0 Iguana iguana