OK... so yesterday/last night I decide to get some things done around the house and things that needed to be done.

Got her a new kit for her hearing aids (hers was broken)
Got medicine for the cat
Folded our D's laundry which had been sitting in baskets for weeks
Cleaned the master bath (pet peeve of hers)
Did some laundry
Worked out

She calls to tell me she has a presentation due next week and will be staying late to study. (She's killing me).

I broke... I mentioned how she's avoiding me. I told her I understood and to be careful on her way home. She said "Oh you care huh?" To which I implored and she said she didn't want to argue. She said making comments like that make her wonder. I reiterated that I felt she was avoiding me.
She then told me she would probably need to work with her friend next week, and I told her that was fine but I would probably be going out with some guys from work (made it up) next Tuesday. She got all curious.. (Who, Why, etc) then said "Whatever, I'm not your boss" She never says that!!
She says "Well.. just make sure I can go out one night during the week." I reminded her that she had been out every night this week and she responded "Really?.. Oh well"

This feels like it's getting worse, but I don't know what to do.

During the course of moving around the house, I had locked the door coming in from the garage. This is the primary door we use to get in/out. Woke up at 12:30 to her beating on the door. She was all freaked out about how I locked her out. I explained that I was doing stuff around the house and locked it and forgot.
She immediately chimed in with how they finished their project and she wouldn't have to go next week. She then asked if I was mad at her to which I said no.. she asked "Promise?" to which I said yes.
We then had an awkward hug and went to bed.

This morning... no thanks for cleaning the bathroom, I mentioned the kit and she complained that her hearing aid wasn't in it, mentioned the cat medicine and the fact I gave it to her (the cat) and she just said "Yeah, I noticed that"

She did ask me what time I was going out tonight..GRRR

As she pulled out of the drive, she was texting on her phone. Which I imitated in the driveway.

I pick up the S papers at the courthouse today.

Ugh.