Soap sprays (whether home made or commercial) can easily harm sensitive blooms; I'd consider that to be a normal response. Simply snip the flowers back in an all over hair cut and your plant should recover just fine. Never hesitate to give your plants a trimming.

As a matter of fact, you can cut your Calabrachoia back fairly severely so that you can concentrate on getting rid of those aphids. It will regrow with vigor.

the plant itself looks fine..

its just that flower tissue itself is so delicate.. it cant handle the insult ...

you are on the verge of loving it to death ...

set it aside.. and but for proper water .... ignore it for 2 weeks...

at that time.. it will have re-bloomed.. and hopefully be bug free ...

it is stressed.. do not fert ...

ken

Thanks everyone! I appreciate the responses. Sounds like my plant will do just fine :)