I now had 2 middle pair and a flush draw . The player in earlier position bet $ 50 into the $ 65 pot . I pushed all in .

Question: Why did the person bet all his money ?
Answer: The pot was now at $ 65 dollars and he wanted it to grow .He was in a low position and wanted to gain ground .He knew how to draw very well and he thought he could get top dollar .The cards he drew were very favorable to win .