Rabbitto and Rabbitta - two more of our strange animals

Rabbitto, wearing the hat and scarf my daughter made for him (reluctantly)

We have a rabbit who lives with us, my eldest daughter bought him home about five years ago because his owners didn't want him and were going to put him down (she does that all the time). We call him Rabbitto. For the first four years with us he lived in a fairly large hutch, by himself. It always bothered me that he was alone because rabbits are social creatures and they need company. About a year ago I decided that he would be happier running around the yard, even if only for a short time (considering the predators that hunt in the area (cats, hawks, owls, etc), so I let him out and my daughters made up some shelters around the yard for him.
He is still there in the yard after a year, so I guess he is smarter than he looks. Lately we have noticed something; he has a girlfriend (or possibly a boyfriend), a wild rabbit who comes to visit and bond over the rabbit food we supply. We haven't seen rabbits in the local area before so she/he may be new to the property. We call her Rabbitta (assuming that our rabbit is heterosexual), she comes to play with Rabbitto through the fence and has dug her own little entrance into the yard which Rabbitto has ignored thus far. They run up and down the yard and jump around like mad followed by a quick nibble of rabbit kibble and a snooze in the sun side by side.

Rabbitto, in his winter coat (he wears the jacket mush better than a hat and scarf)

Rabbitta, blurry because the photo is taken at the extreme end of the camera's zoom function. She is a wild rabbit after all.

Rabbitto and Rabbitta having a rest in the sun

Talking through the fence.

I know there are many possible disasters in this scenario;
Over breeding of rabbits in our yard and surrounds
transfer of diseases from wild rabbits to our rabbit
holes all over the place
Rabbitto deciding to elope with Rabbitta

BUT; to me the advantages outway the possible disadvantages (so far);
Rabbitto is happy and fulfilled, waiting for Rabbitta to visit each day.
I love to watch them play together
They keep the lawn mowed between them

What do you think; am I being short sighted, should I nip the romance in the bud (probably full flower by now, rabbits court fast)?