Search Results: keeping secrets

So me and my current girlfriend are together for a year and a half and don't get me wrong, I love her and what not but I can't shake the feeling that she keeps texting and seeing two of her former lovers. It all started when she kept some things a secret from me (regarding seeing one of those guys) thinking that I won't find out. Also she lied to me about some stuff regarding her ex-lover (she denied that she was sleeping with this guy she works with although he was the one that told me they were hooking up when I started dating her). At this point I confronted her about the "little white lies" and her seeing those guys and she just denied everything. I'm not talking from my ass here. A couple of days ago I was on my computer and was browsing youtube when I saw a chat pop up on facebook. I checked it and I saw that she forgot to log out. It was one of those guys just anking her if the meet up is still on. The meet up they agreed upon was during the time she was allegedly working.

I know I'm not a perfect guy, not even close but I cherish honesty and integrity. So now I'm completely lost because I want to catfish her but my moral standards are keeping me from doing this. On the other hand I wanna know how involved she is with these guys and if there are any other people she's seeing and not telling me. Every time I ask about these things she denies everything.

I'm kind of lost and would appreciate some help regarding catfishing her or what to do.

For my wife <3 I love her so much! <3 and I save all our texts and messages and I've drawn many pictures of her <3

I'm thinking of making a shrine to her but I'm worried she'd find it creepy? She knows I save the messages and I don't believe in keeping secrets from her. I've told her so many times how much I love her and worship her and she loves me too <3

She deserves so much more than I can ever provide, but I want to dedicate everything I can to her!
I bought us a nice house by the river and I wanna make her the most comfy satisfied person in the world! <3

it's our anniversary soon and I wanna build a shrine as a surprise, which is why I haven't asked her.

So, me and this girl have been friends for 4.5 years now. She calls me her best friend, But I have had a crash on her for the last 4 years and I think i might have fallen in love. But now, She is not the same as she was 4.5 years back, She has made some new guy friends and she seems to going away from me. When I ask her directly about it, She still insists that I am a very good friend. She talks to me very well and makes me believe that when I'm with her.
I am doubting her because whenever I ask her if i could meet her friends, she tries her best to convince me that i shouldn't meet them and she is spending a lot of time with them and she is keeping some secrets that i know. I haven't told her that I know these secrets. And she also tries to end a text conversation as fast as possible and I'm always the one who starts it.
And yes, She keeps mentioning that she thinks about me as her brother whenever I try to confess, forcing me to change my decision. I have tried twice and she has done this twice too. So confessing isn't an option, at least not for now. Please help.