Should i ignore my wifes flirting with black guys?

I love my wife dearly , she is the most beautiful girl I know and I only have eyes for her , and she dotes on me with all her heart, we have a great rapport togother , my wife has recently become disinterested in sex and says our relationship has moved to the best of mates , but i want my wife to still fancy me iam blonde haired and she is spanish but has an almost thai look she is so stunning, but I started to date her when she was only 20 years old and she never had even kissed a man b4 I was 25 she was very innocent and you could tell that in the way she dressed , she used to like wearing little frilly socks and ballet slippers lots of headbands etc,,,, So i was so surprised that after only our 1st date she would make it so obvious she fancied black guys i have no problem with but it did make me feel inadequate especially when she would always let out one of her beautiful smiles every time she encountered a g looking black man anyway i decided to let it go but her giddiness every time she saw a g looking black guy made me feel like crap so i confronted her with and really wanted to leave her just to gain some peace , but she was devastated and i took her back anyway she stopped her wandering eyes , but it has started up again but surely if you are so obsessed with a certain type how can you be happy with the opposite , this time iam more chilled about it and i know she will not ever leave me as she scared of that , but should i tolerate this iam considered handsome but i don't feel appreciated in a physical sense! and i want to be! but what we have got between us is great should i force the issue again knowing i could blow my top and break us up because i cannot remain to calm or for the sake of our marriage ignore it or even ask her to share what she finds attracted to the men she checks out? iam stuck