If you and dp got together young (around 19) and are/were in a monogamous relationship, have they at any point attempted to catch up on what they'd missed out on by not playing the field when younger? Do they all feel like they've missed out? Do they grow out of this or has it affected your relationship?
After a bolt of recognition reading a post on another thread I'd like to understand it a bit better - is it common to men in long term, young starting relationships, or is it more dependent on the type of person they are to start with. If that makes sense?