AITJ for giving a brutally honest toast at my ex-husband's wedding that 'warned' his new bride about his infidelity?

¿Soy la mala por dar un brindis brutalmente honesto en la boda de mi exmarido que "advertía" a su nueva esposa sobre sus infidelidades?

OP was invited to her ex-husband's wedding for the sake of their daughter, but when someone at the reception called her up to give a toast, two glasses of wine and years of resentment turned her 'brief remarks' into a public warning the bride never asked for.

Tengo 34 años y Felipe, mi exmarido, tiene 36. Estuvimos casados cinco años. Nos divorciamos hace dos porque descubrí que me había sido infiel con al menos tres mujeres distintas.

Opening lines