<human>: To begin things off, I want to say our relationship is amazing I do fully trust her 100%. We've also been dating for a year. 

My girlfriend [21 F] runs social media accounts for a local store, and they pay her to post photos and interact with customers/friends. My girlfriend left for a week on a camp trip for church, and asked me [22 M] to watch over things and post things on her and the stores behalf. I, of course, agreed. So while on the FB account of the store, I noticed in the search bar they had a recent search history. I noticed that she searched for her ex boyfriend, and I was able to find out the exact day she searched for it, which was the 29th of May. Now that weekend was Memorial Day weekend, and we had a huge argument and broke up for that weekend. I was still texting her, talking to her on the phone, and I did see her on that Monday, the 30th. We did get back together then. Should I bring up the fact that I saw that she searched for him?

She hasn't had service this whole week, and she doesn't come back until Friday. I haven't talked to her since Monday morning. Should I bring it up as soon as she gets back? Or should I just ignore it? I completely trust her. But what should I do? I do miss her a lot, and I don't want to ruin the time we spend together when she gets back over something that may not even mean anything. Am I overreacting? Or under reacting?

Can you succinctly summarize the text in 1-3 sentences?
<bot>: I saw that my current girlfriend searched up her ex boyfriend on Facebook. She's away for a week at church. Should I confront her when she returns?