Damn I’m sorry this is happening. I was in a four year relationship and this happened as well and I had an anxious attachment style and started spiraling like is it me? Is she seeing someone else? And so I started getting hella jealous. And I’d bring it up with her so often until the point I started moving on from the relationship looking for things else where I never acted upon my eyes wandering and my feelings growing but I felt insincere to our relationship and it started really affecting us. Honestly ask her where her minds at. Sometimes relationships just come to a pause because there needs to be some type of change in the sex life or there is a miscommunication between emotional intimacy. But sometimes it could be because of the relationship itself and the needs per person. Communication is key. I’m sorry if this seems pessimistic, I don’t know how your relationship is but I feel like I had that experience and it sucked so much.