So hurt and alone

So my husband was caught at the shops with another woman. He wasn't doing anything but when I was last at their work I sensed a lot of tension between them and she avoided me completely. So I asked what was going on and of course they say nothing blah blah blah. I have no actual proof of cheating or anything so I can't 100% prove he's having an affair. But anyway, I've slept in the spare room these last two nights anyway because I've not been sure. On to of this, we had to put one of our pets down this week too. I feel so hurt and alone. I asked him to come sleep with me and he didn't reply so I just went to sleep. I don't know if he's respecting my space as it was me who said I need alone time, or if he doesn't mind the opportunity to be by himself too. I can hear him playing TV games until late at night, I just wish he'd have come to bed with me. Last night I felt exactly like I did 10 years ago, when I was sad and lonely and didn't even see the point of life.