There is a wedge in the relationship, who put it there? Remove it.
I have been with a cheating spouse before and trust me I know how it feels, those suspicions are not mere paranoia. If you suspect that he/she is cheating, he/she might actually be..I hired a PI who helped me install monitoring bugs on his phone that diverted all his messages( facebook, whatsapp, text messages, and even phone calls) to my phone; nightowlhacker at gmail.com or +1(803) 999 7288 He is of high professionalism and highly reliable. I really enjoyed working with him and i finally got to know the truth. Tell him Geoff referred you.