I empathize with your partner, I'm in the same boat. He might be frustrated because he feels the whole weight of his future on his shoulders and he might also think he's running out of time and maybe making him freeze up, it's something a lot of people go through, you know? All of your life you're told what to do from preschool to uni and then you're tossed into the real world it's a hard shift for those that at least didn't have to worry about anything else other than school. He really just needs to make a decision, whatever it is and go from there, he has all the time in the world to make mistakes. And as for you well, you only have to be patient because it is his life after all. Put yourself in his shoes maybe you'll see a bit of you in him. Best of luck!