daniala, using a condom now is like bbolting the stable door, You say do as she asks, that's one sided, stop pestering yes.if this guy has reason to be suspicious of his girlfrien, and oviously he has, then it's natural for him to snoop, esp iff she won't come clean, and it sounds to me, like this wanting more time, space thing is a cover up for the other guy,
if he's going to make a commitment to the baby, he should make sure it's his first,
Sounds to me like this girls playing the field, and as things are he is better off as a spectator,
I would stand back and let her decide for herself, without presure from myself,
otherwise he will be grovelling forever.