Paul,
Its OK to have some intensity, and the problem really isn’t scaring them off. Its in the feelings growing slower on their side can appear invalidating, discouraging. Consider approaching romance like you would a garden. You plant seeds, hoping they sprout, but temper that hope with patience. Things blossom in their own time, ya know?
Not too much water, such as “I miss you”, or the seeds drown. Not too much sun, such as “I want to build something lasting” or the ground gets scorched. In the middle, there is Paul the child-like explorer, accepting what is, but wishing patiently. 🙂
With warmth,
Matt