45 year old goody wife

My wife was a virgin when w3 got married. She was 23. Good cathol8c girl. Taught her everything. But a good while in to our marriage I guess we hit a ro7gh spot. I was away working l9ng days etc etc. Well this go9d friend of our who didn't need to work.split from his wife and started coming round tour for tea sympathy and company I guess
She told me about it. It was a bit annoying really for her coz it interrupted her working day. She worked from home. But she didn't like yi upset him as he was pretty down and shook up by his situation. He seemed to comevby every day. And eventually after a week or two I got a bit annoyed by it too. Especially as I had all about his woes later in the evening. She had a lot of time for him.and I got tiny b8t jealous. I would confront her. She'd say nothing was going on between them. We just talk. Anyway he's not my type. But on it went and I guess she realised I didn't really want to hear all about him when I got home tired of an evening.
But still doubts nagged me
I cam home one evening a bit earlier than usual think8ng I would try and be nice to her. The kids were out so I thought I might get her to myself and enjoy some loving with her. She was a bit resistant reluctant. The kids might come back at any minute. But anyway she gave in and we went upstairs. I tried to finger her as I always did to get her warmed up. But she resisted it. I said I wanted to and got my finger 8n her. She was surprising wet and I said so. Maybe she just was horny and wanted it straight off. So I ploughed in and started fucking her. She felt really really wet and I thought nothing of it. And she came like never before. Wasn't long before I blew my load into her. I thought wow she's obviously loosened up finally.
I ought to come home early more often. I didn't say anything but I resolved to do it more often try and be less tired and see to her more often.
So about a week later I got home early thinking the kids would still be at school yet for couple of hours. I went in through the back door. No sign of her but there 2 cups on the table. Oh I thought that fucking arsehole is here again with his woe is me act. So much for an early fuck. I thought best put a brave face on it and go and say hello. I couldnt hear voices in the living room upstairs so I was puzzled. No wonder I opened the door and there they were stark naked on the floor. His cock still half erect with remains of his cum dribbl8ng to the floor. The rest of his cum oozing out of her gaping cumhole. They were half asleep so they didn't see me. I was so shocked. My perfect wife goody goody moral wife had let another guy fuck her . I was so disappointed yet my cock was rock hard. I wanted to fuck her but not with him there. I pulled the door to and went back downstairs.