<human>: So my friend (R) is in his first relationship. It's a bit of an odd set up, he's seeing a man (D) who's just turned 60 who's in an open marriage. But whatever makes them happy...

I'm just concerned though. The weekend before our thesis's were due in, he still had 2000 words to write. But apparently 'had to go' to all three of Ds birthday events. D has a lot of friends, so had a party plus two meals, with various groups of friends/family and R was invited to all. I asked if D said he had to go and he said no, but that he felt he had to.

In the end, my friend finished his thesis, but didn't have time to proof read it properly. It didn't help that he ended up hungover from one of Ds parties, so didn't do work on the Sunday morning. And he didn't even finish the notebook worth 20% of the marks for the dissertation unit!

I'm worried he's done badly on his dissertation. I went away for 2 weeks on a fieldtrip not long before our dissertations were due in and he did literally nothing to his thesis in that time, he spent most days with D. He could've had it finished in that time. I don't know his topic very well, but his draft feedback seemed to indicate he had a lot of work left to do if he wanted a good mark... which he didn't do.

And now he seems to be procrastinating a lot and spending a lot of time with D, when he should be revising. R only needs a 2:2 (50%) to get onto his masters. But at the rate he's going, he'll struggle to even do that. 

I can't tell him what to do. And yeah, different people have different priorities. I prioritise my work over my boyfriend slightly at the moment, but R prioiritises D But I don't want to see him fail. I haven't seen my SO in a week because I've been revising and R has seen D most days!

Advice?

Could you distill the essence of the text into 1-3 sentences?
<bot>: Friend is setting himself up to fail. I want to encourage him to at least temporarily change his priorities without being pushy. Advice?