Shaming my future Brother-in-law, a pro chef who agreed to cater and is backing out with 6 months and no budget left.

Backstory is: my fiance is a veteran and when he got out of the military, he invested about 50k he'd saved up in his brother's first restaurant. Working there is how we met. My fiance did renovations, worked the dishpit, and handled all the paperwork for his brother - anything that was needed to support the 'family' business. Eventually, that business dissolved and FBIL relocated and moved up in the culinary world. He has neved paid back a cent of what was given to him, and catering our wedding was going to be the only repayment my FH was ever gonna ask for. It was also something he expressly offered, asking us 'what we wanted to eat' and discussing the permitting and kitchen space logistics. His excuse now is that 'it'll be too hard.' We wanted the sentimental food from the old restaurant - literally a taco bar. I'm also a kitchen manager so I know what that would entail and was collaborative with him the whole way. He is apparently offering to pay for something else, but when pressed my FH can't give me a budget, so I'm assuming this offer to pay is also bullshit that won't pan out. Averages in my area in peak season are about ~$75 pp and we were planning for 100... I feel mad disrespected, especially coming from someone in the industry who knows what this is going to do to our budget now. I can't believe someone would go back on their word on arguably the most important aspect of a wedding. We will figure something else out, but right now it feels like my budget and expectations just took a beating.