What do I do??????????????????

My boyfriend and I live together and I was going through my history page on my computer, and I saw that there was lke 5 girls and picture pages that I know I didn't look at, and then I looked for more and has been browsing through the search engine looking for girls 18-25 who are single and looking, and the zip code is close to ours...I havent confronted him yet, should i? what should I do? What does this mean?