everybody brings up good points. but here are some things i would like to bring up in regards to most peoples arguments:

1) for those who think i should have raised the flop: This is a reasonable play in my mind IF THERE WASNT 5 PEOPLE IN THE HAND. Checkraising with bottom set on 8910 with 2 diamonds into 5 people could very well lose you more money in the long run. In Addition, most people on the flop ARE ONLY THINKING ABOUT THE RAISER. You are all failing to think about the 2 people behind me. Yes, the button continued on the flop with a bet. Now, if you raise here and one of the 2 players behind you flopped a higher set/ straight/ Flush draw, your probably getting your whole stack in the middle where your either an underdog or a small favorite. IMO these are the marginal situations that you want to stay away from.

2)On seperate note, a lot of people are saying "ITS A SET, NEVER LAY IT DOWN". To this note, i think you guys are doing yourself a great disservice by only thinking about YOUR HAND, and not thinking about your opponents hand. IMO when the button fires the turn again for most his stack AFTER the diamond hits the turn completing the flush, and having been called in 2 spots, he's saying i have a set beat. BEST CASE SCENARIO HERE IMO, is that the button raised with big overpair and turned a flush draw to go along with his overpair.

With all that being said, it is entirely reasonable that my hand was good. However, after playing more with this player i am confident that he had me beat.