I almost lost all my Bitcoins today lol never again this dice sites
I did $100 bets and end up losing $800 on 49% chance
then I was in real Tilt and bet 70% chance on $1500 2 times
and win $400 2 times and get the momey back.
You're lucky that you got your money back after investing $1600 on it.
I suggest that you don't do this again because you are just lucky at that time. You don't know if this exact situation will happen again to you. Maybe you can lose another 100$ but to risk another 1500$ again and unfortunately lose again... you will feel regret if you do it.
This is how casinos always win. If you lose, they have control on you already and they are saying kinda like "Get your money back, invest more".