Today they announced that you will need to be 110+ to receive the love rocket.
Last year they announced it was 100+.
Do NOT buy a boost for an extra chance.
Last year about a week after the announce they raised the boost level from 100 to 110. If you buy a boost before event and they raise the level a week later you will have paid for service that is getting improved by 10 levels in about 6 days.
They will NOT bump up your level to the new boost if you put in a ticket. They will suggest you buy another one on the same character though… Last year I was baited by this announce. Just a heads up.