I am a tough lover! for the most part. her will come around once he gets the new routine. kindof sounds like he is used to doing things a certain way, like maybe he is surprised once you get to the park because it's not where he thought you were going? was he in this providers back yard? or was he going to a dif park? maybe it had dif toys a slides and he's not sure what to do, or maybe he misse his old "buds" being older than him, maybe they helped lead him through everything, now he is on his own and "lost". I would just give him time, especially if he is good in every other area...he juts needs to adjust. can understand you concern though, its not easy trying to get used to a New Child. I would just give him time!