DH and I haven’t been getting on recently at all, it all came to a head one night he walked out and said he was done. He disappeared all the next day with his phone off and returned the next day with an apology and how he wanted to work on our marriage. He said he had been drinking with his cousin who I know very well. It all sounded believable and we had a heart to heart about everything. However, I found a receipt for a dated the morning he returned, at a motorway services that isn’t near his cousins house, about 40 minutes away. I confronted him and he said he had to drop his cousin in that area before he returned to me that morning. A horrible thought came across my mind, has he cheated in that area, gone to the services and came home. He’s adamant it’s the truth and told me we need to leave it now. I don’t know what to do now because we’re getting on but do I dig? AIBU to be suspicious?