Pros and cons. Been working real hard the last two weeks. Learnt a lot of life skills and managed to fail at mash potato.
Like all life skills they come with time and effort. You'll never learn how to cook if you only ever eat takeaway. Unless you're completely inept, the second batch of mash will be better than the first. You'll learn how to season it. You'll buy cookbooks. You might even buy a potato ricer. But whoa there Nelly! Don't get ahead of yourself!
The best thing I ever did was leaving home and living on my own. Sure, the house was a mess, but I came out of it a pretty good cook and know my way around an ironing board. It sounds like you just got yourself a pretty good opportunity to learn all this stuff for yourself, but you're scared about life on your own.
From reading about your woes, it seems that you and your ex(ish) are treating each other like a comfort blanket. She's become bored or seen the allure of something other than the norm, has tried it for a bit and now it's not what she thought it was, she's back to you as you're what she knows and what's comfortable. By all means, be there for her as a friend. But be
very wary about getting back into a relationship with her, because now she's done it once how can you trust she'll not do it again? If she sees that you're not moving on, you're
always going to be where she runs back to when life doesn't work out how she wants it to. Is that who you want to be with? Or do you want to be with someone who wants to be with you regardless of outside temptation?