I'm after getting into alittle argument with my s/o at the worst possible time. It's her birthday today and we are currently on holidays for it. All I really wanted was to give her the best birthday she could have  and it was genuinely going  that way until we got into abit of a fight. We had a disagreement over something that happened  months ago.

 Just for some context about 8 months ago I stupidly asked was she cheating on me. it was purley out of insecurity but we were going through a rough patch and she changed all her profile pictures on social media to without me so I just ended up getting panicked and I just asked her. This was not good for obvious reasons I completely regret ever doubting her and I've apologised alot for it. Though I do explain why I did it , from the mentioned above , not  for justification or shifting blame reasons , just so she'll understand me. 


Well anyways this came back up somehow in the conversation and she was mentioning that I wasnt owning what I did properly if I keep mentioning that aspect when apologising. She stopped talking to me and I repeatedly kept asking what she was thinking, she kept refusing to answer me, saying no I don't want to say it,  until she got up and left the room. She refuses to speak to me now and I feel so awfully bad that this is happening on her  birthday when we're supposed to be away celebrating  it. I did go out to give space and buy her a little gift but she's pretty much non-responsive , like she just looks so defeated and depressed. I feel incredibly guilty for this and I want her to feel better. 

Is there anything I can do right now that could make her feel better. I don't want her to be looking back on her birthday with only bad memories to it. Thank yous all in advance for reading this. 