That wood elf from Riverwood who is supposed to give a love triangle quest only gives me a one-liner comment when I try to talk to him, without actually starting dialogue. Means I can't use him for training and can't start the quest to get him as a follower. As for the quest, talking to Sven has no effect either. Is there any way to fix it, through console or otherwise?

did you already deliver the letter to the girl?

Nope, just arrived at Riverwood for the first time.

try talking to camilla first. if that doesnt work, i dont know what else to say. maybe have to load an earlier save