If it's said as 'I'd love you if.... (you do x, y, and z)' that's not acceptable. IME the kind of person that says that doesn't actually want you to succeed, they just want to keep the carrot of 'I love you' dangling out of reach so that they can control you.
Last time we had the conversation about giving it one last go, it was a list of things that I don't do - listen, answer his questions, etc.
A good example would be last night he asked me how long roast potatoes take to cook. I said how hot is the oven? he said it's on a 200, that's what the packet for the chicken said. I replied is that after having taken off the 20 degrees to account for the fan oven? (He knows we have a fan oven)
Cue him storming off in to the kitchen shouting you never answer the fucking question do you?
It would have been my fault if the dinner was burnt, even though I wasn't eating as I was ill....