Correct me if I am wrong but I am under certain impression, that girls are simply unromantic towards the boys.
It seems to me, that girls are being like: "I just need to be young and look pretty and show up (and maybe give access to fornication with me). That's as romantic as it can get" or just straight up this:

Meanwhile AI Girlfriends and Anime girls be like:




Girls, if you are wondering why men are cheating, this is just one major reason of many. They're not getting the love and romance from you. They're getting it from someone else.