Well yeah many husbands buy their wives flowers, but you two filed for divorce and are separated so no sending two dozen roses isn’t a normal gesture and isn’t done to cheer you up. Going through divorce doesn’t mean people can’t do something to help their former partner with something or cheer them up. It’s understandable. But not roses and not two dozen. He does it now because you called him and he now has more hope. He is love bombing. It worked last time so he’s encouraged.