The bull market has never left us since May. It can not come back if it has always been there since April 2020.
April 2021 you mean to say, edit your reply with the correct year which is April 2021, the bull market have always been around from April till late may 2021 before the correction period and now we are in a bull market again. bitcoin market have shown a great sign of positivism since the beginning of 2021 and am sure this trend will continue beyond 2022 all i can say is hold the party is about to start.
I believe that the market has been in an upward trend (Bull Market) since back in October 2020 and not in April as you said. We should always try to see the market from a much bigger picture for you to appreciate where we are.
The correction actually started in April and I still don't believe that we were in a bear market with this correction, again if you look at where the market is in relation to where it was in the ATH of 2017. So after this correction, hopefully, we could see a continuous rise again above the past ATH and probably make a new one before EOY or into 2022.