You sound like a genuine, thoughtful person. Very caring. However, I think she feels she is fine how she is...she may well be capitalizing on your empathy to justify her behavior and the way she treats you. Bluntly, I think you may be getting used and she's selfish. She's got a good setup for her going here. Sleep all day, etc. I bet you get the pity play a lot.

She has no reason to change and you can't change her, regardless. You can evaluate if YOUR needs are being met and, if not, whether she will try to meet your needs. That includes being respectful of boundaries and not degrading you. Walking ahead of you? You aren't a dog on a leash. You're her partner. Not OK.

Your relationship isn't getting weirder...you're getting an eye-opener but your feelings for her leave you biased. Your post here is good because it shows you are questioning your insight. Explore that and ask if you are genuinely happy in this relationship. There is NO obligation for you to stay with her if you aren't happy. She may be more savvy than you think, more experienced. You may be replaced very quickly. You're not a widget.

You're unique and deserve an authentic partner. She's running the show here. Think and quietly "question authority." You're a year in. Picture it 10 years in, 15 years, etc. I think she will be around...unless she finds someone with the ability to give her more...maybe a wealthy person. Her telling she's not into long-term? Keeps you insecure, at her bidding so you won't "lose her." You're under her thumb.

I also have a psych degree. Guess what? I married a narcissist. Divorced. That was a real education. Yikes. That walking thing? My ex did the same thing!

If you're still conflicted ... see a therapist. Do what is best for you. Good luck.