hi Twinflame
you're in a horribly stressful situation. i've read back into your posts and i see that your bf is not only making serious statements like this, but he's also making himself unavailable, and you're left in emotional turmoil. i'm really sorry
i think it's better for you, and for him, to take these comments seriously until otherwise indicated. there are helplines for this, such as
www.suicidepreventionlifeline.org/ and
https://www.facebook.com/800273TALK. you might want to mention these to him the next time you speak.
in the bigger picture, what keeps you attracted? where do you see the r/s going from here, after this episode?