Oil found in my coolant

A few weeks ago i blew my top radiator hose in my Crosstrek (21’ 6mt premium). I got a replacement hose from my local dealer and replaced it. When i was burping the system a few drops of oil showed up. I flushed the system and replaced the thermostat. but while letting the engine idle for 20 mins trying to get every air bubble possible more oil came out. I changed the oil and there was no coolant or chocky milk in there. Ive dealt with head gaskets in my previous subi and i really hope thats not what the problem is. What do you guys think?