What happened?

I have had Duolingo of couple years and I was glad to see it grow to what it is but something has change in the past couple months with this new update because now its horrible. This ad thing thats going on is annoying and I dont even want to do the exercise because of it. This thing with the heart isnt something new ( of course before it reset after every exercise and you didnt have to pay ? to get more life) but they took it out so people didnt feel discouraged if they ran out and now theyre bringing it back? I dont know whats going on at HQ but someone needs to get the head out of their ... and bring back the duolingo everyone actually enjoyed! (Yeah you want the business to be profitable but doing it this way is just driving people away)

rhe:) about Duolingo Learn Many Languages for Free, v5.1.7