I think you may be overlooking the possibility of her beginning the teething stage.
The most obvious way to get them sucking is to help them learn to enjoy a dummy. My almost 6 month old son has finally taken to the dummy after ~5 months of spitting it out. As a result I think he complains less and has gained stronger suckling power, making feeds quicker in the process.
We've also used teething gels such as Calgel (I think) and given him various chewing toys.
If you're certain it's not related to teething, another option is to wait until your baby is truly hungry - not just ready for their next feed - distract them if you need them to stop crying and they aren't hungry enough yet.
Keep attempting to give the bottle to your baby and if they refuse to take it stand up and walk around with them so it's clear you're not trying to feed them, and then after a short while go back and try again. And repeat, until she manages it.
Incorporate some positive reinforcement into the situation such as “Yeah” with a big smile whenever they open their mouth with intent or make a positive move towards sucking.
Your baby will easily learn, once motivated by hunger and aware that the bottle is the only option. Unless there are some other health or development issues. As with anything, have a chat with your doctor about it as well.