Since the Torrey Pine is a tree, it cannot do anything to find a mate. The pine's strobili release pollen and fertilize the cones, which drop from the tree and release the pine nuts (the seeds) from inside. There is no gestation period because it is a tree. There are normally around 100 seeds on every cone, with two seeds under each scale of the cone. Since the Torrey Pine is a tree, the parents do not care for their young once they sprout. The offspring 'leave' their parents right as they fall of the tree. Torrey pines normally have a century-long lifespan.
When the Torrey Pine is just sprouting, it quickly sends a taproot down that is 2-3 feet long, and the roots spread around once they reach bedrock in search of nutrients. The tree then grows very slowly, like most trees, until it reaches around 40 feet high, which is usually as high as it gets. As it grows, the root system grows with it, and sometimes the huge root system of the Torrey Pine causes problems. (My own Torrey pine caused a huge bump in the road that seriously injured a motorcyclist, and the root had to be removed.) It then lives on, dropping more seeds for pines to grow.
A large Torrey pine tree
Resources: Torrey pines state natural reserve <www.torreypine.org/parks/torrey-pine>
Images Credited to: J.S. Peterson @ USDA-NRCS PLANTS Database
Mark W. Skinner @ USDA-NRCS PLANTS Database