jealousy? overanaylsing?

Hi,

this is my first post and hoping that someone can give me some sort of hop to change. I met my husband 3 years ago. For Id say 2 years of that ive been overly jealous - wrongly. To give you a bit of background im not a jealous person in any other way except sexually jealous. this is my second marriage, first one wasnt bad i just fell out of love or maybe never was in love. He was alot older than me and looking back i think i felt i settled. I have low self esteem with regards to how i look - deeply ingrained and i know wont change. I like to be in control and i over analyses every sexual situation with regards to my husband to the point where ive googled hundreds of questions about men and their sexuality( makes me feel embarrassed!) The only good thing to come out of it it that im very aware of my husbands sexual needs and im not selfish about it.
Heres the problem - i know men are visual, i know they get a chemical release seeing attractive women, i know so much with regards to why men do stuff etc etc but i just cant seem to accept ita nd not let it bother me. The problem is im not sure EXACTLY what it is that bothers me? I dont care if he watches porn or masturbates as long as it doesnt take over from us sexually. I dont care if he finds other women attractive or presume he thinks im the most attractive person out there. What would bother me is him clicking on an article on an online paper of anyone that has a see tru top on or lots of cleavage etc - the bits i must see as giving him something sexually if that makes sense. We are open and have had many discussions about it but nothing helps. I dont think my husband is wrong and from what i can gather hes not as into 'looking' as lots of men are. I just want to know how to not care, cos its a daily problem for me.