It's never been a part of her relationship with Harley before, and on a personal level I just don't see Harley as her type. If anything Harley annoys...
Which is weird because she was more often than not portrayed as being as capable as she was when she was young, or at least they often didn't call to...
"We come into this world alone and we leave the same way. The time we spent in between - time spent alive, sharing, learning together... is all that makes life worth living." - Jean Grey