Hurt and Confused (just a rant)

UPDATE #2 - I just got back from his house. We talked, and I cried a lot which was expected. But he told me that he hasn't been on the app in a long time and that he forgot that he had it. He deleted the app too. And the told me that Im the only person he wants (we said ALOT to each other but this was just the jist of it). I'm really happy and excited to say that we've officially become boyfriend and girlfriend:) im so glad that I said something in the first place, bc idk where we'd be at if I acted like nothing was wrong.

UPDATE #1 - I really appreciate the comments I got, it gave me validation that my feelings weren't crazy or anything lol. He doesnt seem upset or defensive or anything. He wants to talk face to face about it tonight, so we'll see what happens then

I've had a fwb for over a year and a half, but we ended up confessing our love for each other a couple months ago. We never talked about making things official (becoming bf and gf) but we've talked about living together, getting married, growing old, all that stuff. Since then I felt like our relationship was getting stronger and the more we spent time together, the more we didnt wanna be away from each other. Ever since we said I love you, the idea of flirting or hooking up w other men left my head. All I wanted and want is him. So when i saw what i saw a few minutes ago, I was so hurt.

He was asleep and I needed to go home. I knew he would forget to charge his phone, so I plugged it in for him, which I've done and he's appreciated in the past. But when I plugged his phone in, I saw a notification from Bumble, which is a dating app. I knew he would use it when we were just fwbs, so I didnt care back then. But wouldnt you think that after telling a girl you love her and that you want a future with her, you would get rid of the dating apps and shit? I left and cried the whole drive home. I'm really confused and hurt, because I'm starting to think that maybe I've looked into things way differently than he has.

We've never gotten into a serious argument about anything, but I feel like if dont say anything itll just eat at me and I wouldn't be able to be around him w/o getting pissed or wanting to cry. Maybe I shouldnt be getting upset at all because we aren't an official couple, but I feel like I definitely deserve an explanation. I've given so much time and attention to this guy. I love him and care about him so much and would do just about anything for him, and he knows that. We've been close friends since we were kids so this kinda just adds to how upset i am. I dont want things to end between us, but this isnt something I want to just keep to myself, even though itll risk our relationship. I just need some answers.