I (F21) found out my bf (M21) was in the same city as his classmate (F21) on two separate trips but I am not sure if it is actually a coincidence. How do I ask him about this?
So I (21F) and my bf (21M) have been together for almost 5 years. We are both university students that attend separate universities in the same city. It is important to add that I am a very anxious person and my anxiety has always been the worst surrounding our relationship even when there is nothing wrong. I think that stems from the fact that our relationship is the most important thing to me so I am always anxious as my biggest fear is losing it. Anyway, about 2 years ago my bf met this classmate (21F) in a class as they were assigned a group project together. Let's call her Daisy. They are both in the same major and I believe they are also in the same club at school related to their major. Since then, my bf has made a few more friends through his major related classes and he has chosen to do multiple group assignments with this friend group that Daisy is also a part of. He does talk about her from time to time but mostly if it is related to a story he is telling me about one of these classes. As far as I know bf has never spent time with Daisy alone and only hangs out with her in a group. While the stories bf has told me about Daisy are fairly normal, my anxiety unfortunately gets the better of me and I can't help but feel a little insecure about Daisy because they share the same interests in the difficult career path they are studying for and she is also very wealthy. Also she looks a lot like his first girlfriend that he dated before meeting me. I know I should not let these things affect me so much but my anxiety makes it hard for me to not feel jealous of her. Recently, bf has been mentioning Daisy more often because his friend group has begun planning their final project that they will need to complete in order to graduate which I completely understand is important and requires a lot of time. The group has also created a group chat to discuss the project but they use it all the time to talk about anything and sometimes my bf's phone is blowing up with messages from this chat. Bf and I have also been having a lot of issues this past year. I have to admit that most of our recent issues have been caused by my anxiety getting worse and I have been taking it out on him. Last night we had an argument and afterwards he went to play mini golf with his project group which Daisy paid for the whole group. I was already angry from our argument and when I heard that Daisy had paid for everyone for some reason I just snapped. I spent the next few hours constantly checking Daisy's instagram account to see if she had posted any photos from their outing. I also decided to stalk her page (unhealthy I know) and went through her instagram highlights. I saw that she had posted a photo in a city across the country on the same day that bf was there a few months ago. Bf is a student athlete and had traveled there with his team for a soccer tournament. The day that Daisy had posted the photo of her in this city was the day that my bf and his soccer teammates had the day off from their soccer tournament to explore the city. He even showed me a photo when he returned from his trip of him and his soccer teammates at the same landmark that Daisy was at in her instagram highlight. I kept scrolling through Daisy's instagram highlights and saw that she posted a photo at a restaurant in Orange County (we all live in CA). That same day, my bf went to visit his family in an Orange County city but then I remembered that he told me he also went to a store with his mom in the specific city that I saw in Daisy's instagram highlight. On his trip across the country bf did not mention seeing anyone other than his soccer teammates and on his trip to visit family he did not mention seeing anyone other than his family. I do trust my bf and as far as I know he has never lied to me about his location however these seem like too big of coincidences and my anxiety is making me spiral again. Even if they really were coincidences and he is not cheating or anything like that, I feel like they would somehow find out they are in the same city and still want to meet up even if it is just platonically. I could also see this being possible because while he doesn't exactly lie to me as far as I know, there have been instances in the past where he hesitated to tell me smaller details about some things because he was worried I would let my anxiety spiral and cause an unnecessary fight. If this is the case with this situation as well, then it is still a big problem because it seems like an important thing to not mention to me and he would be lying by omission. Sorry that was really long but I now that you have a lot of context I need advice on how to confront him about the fact that I noticed he and Daisy were in the same cities at the same time on 2 separate occasions. Bf still does not know that I saw Daisy's photos yet.
TLDR: I stalked the instagram of bf's (21M) friend Daisy (21F) and saw photos of her in the same cities that bf had traveled to on the same dates. On both trips bf was either with soccer teammates or family and has not mentioned at all that he met up with or even knew that Daisy was in the same cities at the time but idk if these are really coincidences. Need advice on how to bring this up to bf.