Last night I walked in on my girlfriend sniffing my underwear and I don’t know how to feel

I’m embarrassed to post this on Chambers and I don’t really know where else to turn. <br><br>**TL;DR** at the bottom. <br><br>Yesterday my girlfriend (24F) and I (25M) went to the bar for a couple of drinks. It was a pretty typical night out; we each had 2 beers and I had 3 whiskeys (I’m a little worried that it may have hit me harder than I think because of how out of it I am in the story that’s about to unfold). <br><br>Around midnight we decided to head back to my apartment. I have a guest bedroom so she usually will stay the night and then head back home in the morning. <br><br>I remember getting to my front door with her and struggling to find the keys. When she laughed at me, I remember being upset at her and telling her “I’m not drunk.” The next thing I remember is waking up in my bed with a splitting headache. <br><br>When I sat up and looked at my phone, I saw it was 3:45 a.m. and that my head was killing me. I decided to take a piss and; as you can imagine, I was shocked as hell to see my girlfriend standing in my bedroom sniffing my boxers! <br><br>When she heard me behind her she jumped and tried to play it off like she was in there looking for a towel. I’m not stupid and I pressed her on it. When she finally admitted to it she started crying and said “I’m so embarrassed.” <br><br>We’ve been going out for 4 months. I just don’t know what to do. I don’t think she’s truly into me, but at the same time I don’t want to break it off just yet. <br><br>&#x200B;<br><br>**TL;DR:** Walked in on my girlfriend stuffing my underwear in her nose and now we’re both embarrassed and I don’t know what to do.