Ehem...the clash was between Dilwale and Bajirao Mastani...and THAT was more a thing between Eros Entertainment and SRK.
BM announced the releasing for Christmas, so ShahRukh and Rohit announced Dilwale for one week before...then SLB had to change the date to make it a clash...and Eros had support by nationalist groups because Barkha Dutt (and another interviewer) made ShahRukh say something about growing intolerance in India.
At the release of Ra.One, there was a fall out between Eros and SRK I think, Eros chief Lulla thought he would handle SRK like a subordinate. That aggravated when YRF clashed with Ajay Devgn's movie in 2012 (JTHJ)...Eros made Ajay doing a leagal battle (which they lost).
SRK tried to talk to Lulla to keep the initial date for BM but no chance.
However, I'm not aware of any "misbehaviour" from one of the actors' side...
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