Should I break up with him b/c of this?

I’m sitting here in tears writing this because I don’t know what to do. My boyfriend left me alone in his house today so, I, out of curiosity decided to snoop around so I went into his closet and something told me to grab a box. I opened that box and found his exes dildo, naked pictures of his ex girl doing foreplay acts on him etc. JUST ALL NAKED PHOTOS of her, tons of letters that she had wrote him as well huge memory box of her sexual desires. Do I confront him and breakup with him. Or tell him to get rid of it or we are breaking up? Like what do I do… my heart is so broken right now. Weird thing about her is that we resemble in a lot of ways we look alike and have part of the same personality 💔😢😢😢😢could this just be an obsessive relationship… does he only love me because I look like her Or because he truly loves me???? My heart… I’m going to get some gynecologist testing done just due to this reason alone. Please help me we’ve been dating for 6 months and him and his ex girlfriend broke up almost 2 year ago