On vacation with LTR. Saw her getting a dm from someone she has on IG and deleting it. When she got it she quickly hidden her phone and kept it away from me. For fuck sake, she gave me an "I love you" talk few hours ago. She is sleeping atm. What should I do about it?

Edit: important to add, she did something today I did not like her doing and she knows she fucked up. Basically something a little disrespectful to me. She said her sorry and cried and it went from there to the "I love you" talk from her.