So I've been in an LTR with this girl for almost 2 months now.

Now, I'm very new to LTR stuff and I was really debating whether I should get into it, but decided to go for it since she's mostly a great girl, very attractive and overall very fun to be around, with little to no red flags and shit tests.

So she told me from the beginning that when something disturbs her, she just kinda ignores it because she doesn't like talking about it. Yeah right. She just goes cold treatment mode.

At first I tried to deal with it through kinda ignoring it, thinking it's just a passing mood and never addressing it. After seeing that days go by and it wouldn't get solved, I'd talk to her about it and she'd eventually reveal what's been bugging her and we'd talk about it and eventually it would be solved.

The problem is yesterday she was at my place for about an hour. We were just chit chatting, making out, generally having an awesome time when suddenly out of the blue (I swear I can't find a reason she'd do that) she turned cold again. I asked her what's wrong and like always she said "it's nothing, don't feel like talking about it". I guess this is where I kinda messed up because I insisted for a few minutes for her to tell me, only for her to tell me to stop bugging her.

She kissed me goodbye and when we talked this morning (a day after), she said it was nothing and asked for me to drop it.

After that happened, I genuinely felt like shit. I hate feeling like I did something wrong and I don't even know what it is that deserved that cold treatment of hers.

That helped me realize I'm apparently more invested than her and it's a sign for me to start withdrawing some investment, but it's the kinda stuff that really makes me re-think this whole LTR thing, y'know?

So I'm seeing her today (probably gonna sleep over and bang), should I confront her about it? I feel like asserting boundaries and telling her I'm not willing to put up with random moods over nothing and that if she has a problem, she should speak up, otherwise I'm going to ignore it completely.

TL;DR LTR of 2 months goes cold treatment when angry, this time she didn't give me a reason why and continued like nothing happened, I'm frustrated and apparently more invested than her, should I confront or go with the "nothing happened" flow?