Just lost in this relationship

My wife absolutely drains me. Idk how else to word this so I’m going to word vomit. She’s alway miserable, everything sets her off, and the thought of her working literally puts her in a bad mood, the nights before she has to work she’s always so moody. She’s always complaining if it’s not one things it’s another. I just feel like she also has no common sense. She never thinks outside the box for anything and always relies on me to help her. Like for example the other day, I picked her up from work, our son fell asleep, in the car, we got home and I left to go to work, and she thought it was a good idea to let him nap until 8pm… and I had to be with him all night until 3am and then get up at 10 to go to work again. Like is it me or would you maybe wake up your child do your partner doesn’t haven’t to stay up so late with them? Idk that rubbed me the wrong way. She does stuff like that so much. No logic with anything she does. When it comes to food, she will complain that there’s nothing in the house, when in reality we have meats, spices, and other side stuff but she REFUSES to cook up something cause it’s too much work. I will get us dinner, buy things for her, and I will get a thanks. But the way she treats me it feels like it’s just a half assed thanks. Back to the attitude problem, she told me to remind her and call her out when she has an attitude, so I do. And it’s always “I don’t have an attitude” and stuff like that, and always likes to reverse it onto me like I started it. It’s always me. Or when she gets mad at her game and slams her desk loud af and I ask her to stop, and she snaps at me and says “you do it to” and the last time I did it was months ago and I haven’t done it since, and she brings up shit from the past that I don’t do anymore and makes it out to be something I did yesterday. She just DRAINS me to much. She can be in a good mood all day and then randomly the smallest thing ruins her whole day. Her constant moodiness is so tiring. She also never puts effort into our relationship, it’s always me trying to, and I bring it up and she just says “I just don’t feel pretty to do this” or shit in that ballpark. It just feels like she takes and takes. I’m just tired of this shit tbh, she says she wants to fix things but then never put in the effort to. Her DR diagnosed her with bipolar disorder so she definitely has that. And being with someone with that is not for the weak. I love her, but so much about her at this point pisses me off, and I feel like it’s because she has her issues that are affecting her but now it’s affecting the family. Idk what to do. Any words of advice or anything? Is this just life with someone who’s bipolar? Idk what to do, I’m just drained and lost.

Maybe this is just a rant, idk

I’m also not saying I’m perfect, I sometimes get snappy with her but the god honest truth is it’s due to her being so draining.