Husband threatening to kill himself

Ok so basically I just found out my husband had sex with another women. I told him that I’m 100% done, already headed to legal to start the process. But now he is talking about killing himself. “Be a good mom to our daughter” “y’all will be better off without me” etc. and obviously I don’t want him killing himself. However, I’m also not gonna let him abuse me and manipulate me like that, just so I’ll stay. I don’t wanna risk if he is bluffing or not. What should I do? We’re living in another country right now, far from family.

UPDATE

*anytime I try to leave he threatens to throw my cat out of the house who I love dearly, burn down the house, etc. the list goes on. I’m STUCK.

*currently on the kitchen floor just drinking a bottle of tequila... because screw it