I Ruined My Husband’s Birthday After Hearing the Shocking Thing He Told My Daughter

I have a 15-year-old daughter, Lila, from a previous relationship. My husband, Mark, and I have been married for 9 years, and he’s raised Lila as his own since she was 8. They’ve always shared a strong bond. However, tension arises when his 17-year-old daughter, Savannah, visits from another state. This year, for Mark’s birthday, we planned a dinner party, excited that Savannah could attend. But the night before, I overheard Mark ask Lila to skip the dinner to make Savannah more comfortable, promising a smaller celebration later. This devastated me,
as he didn’t consult me or consider Lila’s feelings, especially since she’d made him a heartfelt gift. Furious, I canceled the restaurant reservation. When Mark assumed Lila was unwell and told me not to bring her, I took her to an amusement park and dinner instead. He was angry when we returned, arguing he was prioritizing Savannah, who was struggling post-breakup. I felt he shouldn’t have sidelined Lila. If he’d communicated, we could’ve found another solution. Now, we’re not speaking. Did I mishandle this? Any advice?