How can I get this woman back? Somebody Please help me!

I recently went on a holiday and left my fiancee in my house in Lagos. On my return I was hinted by my security guard that she’d a person inside the home during my absence and I went off the handle to the extent that we were constantly fighting over the matter ( important thing is ultimately after grilling the guard for more details, his account wasn’t true ).

 I cannot fire the guard since I only reside in an appartment in the building and truly won’t want my neighbors hearing such about my intended wife to be. My fiancee is seriously mad at me and she cannot appear to forgive me for not trusting her until proven guilty. How do I get this woman back? Somebody help me, I’m deeply worried and I’ve tried everything showing her I’m sorry. Ideas anyone?