Chess bot recognized that it was losing then forced a draw?

I was up a rook with the bot with 0 blunders and the bot just forced a draw? (i couldn't move my king, nothing else to block but my queen, and all it did was repetition). any idea why it did this?

It could either force a draw or play something else and lose. The answer seems obvious no? 

yeah but if i could never win pieces then i can never win, chess.com needs to fix this otherwise

I don't understand...what is to fix? You were up a rook but the bot was able to force a draw by repetition right? Why would it (or a human player) do anything else in that situation? Other moves would be losing. 

You may not have made a blunder but you made a mistake which is probably what allowed him to draw the game.

I don't understand. If it could force a draw, it wasn't losing. If the three options are win, draw, or lose and winning is not possible, then it seems pretty obvious drawing is the solution. Why would it choose to lose if it had another option?

It has happen to me a few times. Sometimes repetition is the best move. 

Fool's mate perhaps? (Nothing is captured during the process and one side can still win)

i think it would be very rare for a 1500 bot to allow fools mate to happen