Is it normal to want dead friends wife

3 months ago a friend of mine died and I've been helping his wife out. Recently I was asked by her to find out by her find out why her alarm isn't working .I decided to wear sweats with no underwear I never wear any I spend 3 hours,trying to figure out what is wrong with it turns out that the wires were cut. I tell her that she needs a new one so we go out to buy a new one we get back to her place and start installing it but it doesn't work. I'm fustrated which means that we have to take it back to the store after searching for another one we return to her place I finally get it installed but it's late she asks me to spend the night I agree to. She then tells me to get comfortable so I remove my sweatshirt and sit on the couch she says to me she was going to change clothes . I start getting Horny my cock gets hard and comes out of the bedroom wearing sweats with a thin top on with no bra on her tits are hard she pretends not to notice my hard on and sits next to me on the couch. Suddenly she asks me if I would like to rub her feet she puts her legs across my hard on I remove her socks and slowly start rubbing them she begins moaning so I decide to go further up her legs I get to the waistband of her sweats and pull down her sweats and panties and start fingering her Pussy shes moans more while lifting her top up and exposing her tits I begin sucking her tits while still fingering her Pussy shes wet as Hell! I lick her juices off my fingers as she pulls down my sweats and gives me a blow job I cum in her mouth and swallowed every drop.Am I wrong for wanting her ?