I checked my partner’s phone and I regret it so much

This is a throwaway account. I don’t really know how to use Reddit at all so I’m hoping I can get some help soon. I won’t reveal names or genders because I’m afraid they’re gonna see this.

Just a bit of context, I’ve been with my partner for almost 2 years. I love them very much. We have an almost perfect relationship. Near the start of our relationship I had found images they saved for pleasure purposes and it upset me because I didn’t know and was upset they’d need to look at other people for pleasure. We have since talked about it and they apologised and told me they were sorry and should’ve spoken to me about what was okay and what isn’t in our relationship and had a conversation about boundaries beforehand.

Since then this issue hasn’t come up but I have felt very hurt. And from time to time sometimes I wonder if they do look at those pictures. I trust them and believe that they don’t but sometimes I overthink so much it makes me go crazy and I’ll breakdown.

Today I did something awful and I immediately regretted it. I snooped through their phone whilst they were showering and I searched for a specific word in their Google photos app. As soon as I hit search I immediately regretted it. I should trust them and I was breaking their trust and I felt so bad. I stopped immediately and internally beat myself up for being stupid. I also realised that in the Google photo app the recent searches made stay in a list and I couldn’t delete it from the list. I was worried because I didn’t want them to see it and find out that way.

This whole evening I have been working up the courage to speak to them because I want to be upfront and honest with them. I am also very scared that they’re going to be disappointed and would want to end the relationship. All of this is my fault and I want to fix it and I deeply regret all of my actions. I don’t expect them to sympathise or think I’m coming up with excuses, especially about the fact that I can’t delete the search I made from the recents list. I made that mistake on my own accord and I regretted my actions before I even realised that I couldn’t delete my search. I have been regretting all my actions.

I just want to make it right and not loose them because they are a really good person to me. What should I do?