notauniquename

So I bought an Exact Match Domain for a term that has 1000 global and 1000 local with not a lot of competition. I created only a couple pages and was on the second page for searches for the term. This was over a week period. I added more content slowly and it hit the bottom of page one. Then by the end of one month I dropped off to nowhere.

I checked and it hasn't been completely removed just way down to like page 10. I'm getting slapped for looking spammy I guess but it isn't spammy. I have read the algo looks for common repeated phrases and if there are too many it thinks you are spammy. My website has cum in the title and subsequently the title of most of my blog posts has cum in it too. I put a new keyword phrase in the title that I wanted to rank for for each post. They all happen to have cum in them. Do you think just changing the word cum in all the title posts could help?