Yaoi manga title heelp

so the first chapter , the seme was chasing the uke they ran for so long eventually the seme caught the uke and starts confessing or something. Then later it was explained that before that event, the uke confessed to the seme (not sure though)
another scene I remember was that the seme fouund the uke in a park or playground hiding/sitting under the elephant slide?
the manga was about the seme proving he likes the uke though the uke doesn't believe him or some sort
thanks for the help in advaance :)