I'm sure you've heard this before, but have you tried little rewards for her if she does go pee in the toilet? Like stickers...or a small treat? Maybe making a chart to put stickers on would make it exciting for her? I'm thinking of doing this myself.
I too can only sympathize with you. My DD turned 2 last month and she's had her own little potty for months, but she will not go pee or poop in it. She only sits on it for a minute if I'm lucky...and that's only if I'm in there going she'll come in, take her diaper off and sit for a minute, then get back up and ask me to put her diaper back on. Grandma even bought her a datachable Dora potty seat for the big toilet, but so far it hasn't swayed her. She tells me when she goes pee & poop in her diaper, but won't go do it in the toilet
I just had a baby 3 weeks ago and am really hoping to get her out of diapers soon so I'll only have 1 in diapers...at the same time I don't want to pressure her too much or rush it as this can make it harder on both of us!
I guess the only thing you can do is wait it out a bit longer and maybe when she's more ready she will go pee. At least you have her going poop in the toilet it sounds like...so she's probably not too far off!