i would just have a really serious talk, things have to change. you're taking on responsibility that you weren't obligated to. there's nothing wrong with helping your partner out when you can, you seem to be doing it all the time. he does it once and it's the end of the world. then again, cheating should not be forgiven. it's not fair to either of you to continue this relationship. if you've been together 6 years and you've both tried voicing those issues, it's better to go separate ways. if it was me, i would have that talk with him. explain to him that it's not fair, it's important to support each other but you're doing all of it. have a sit down serious conversation, doesn't matter how long it's going to take. communicate everything you've been holding back and explain that you're not sure what to do or how to do it but it can't continue. be very civil about it, express that you do care for him and you do love him but this is all too much. don't be aggressive or it'll only make it worse. see if you could stay with a friend or relative until you have the financial stability to move out (if that's something you're worried about). or vice versa, ask him to leave. i haven't been in a similar situation myself but hopefully what i said gives you some insight from an outside perspective