Honda Accord

2000 honda accord 130000Km

i was checking the fluids when I noticed a antifreeze stain between the head and the block. This is on the right hand side (passenger side) where the upper rad hose is connected. I didnt think anything of it thaught mayby a lose hose. A couple days after I checked again and it was wet. I checked the hoses and rubbed my finger under the rad hose and it was dry.
I dont think its the head gasket because the car doesnt smoke, lots of heat in the car, oil is normal color and the radiator level never goes down. The car never exceeds half temperature.
Could it be the plastic spacer between the rad hose and head expanding when warm or something of the sort or do you think the head gasket?

Please let me know what you think.

thanks a bunch
Lorne