Rabbit bonding question?

I've been trying to find the right "match" for my neutered male 2 yr old mini rex. I have a friend who breeds and is registered with the ARBA so she's been letting me bring my boy to her house to meet some potential matches. Well, he's shown some interest in this Vienna marked doe over the past few weeks, so I took her home today to see how they'd do on his turf. She's been snuggling up to him (which I know is a good sign) and he keeps shoving his head underneath her head... Is that a good sign? she just licks him when he does but it seems rather pushy of him. Other than that they seem to be getting along... She's even playing with his toys and he doesn't care.