Early poem's second half - reminiscent of Don Juan ? - moving boyfriend's heart (9)

I haven't cracked this one yet — but the brilliant team at Fifteensquared have:

[po]EM (BOY [f]RIEN[d])* AInd: moving . Better parsing from Comment #2: [po]EM then BYRONIC (reminiscent of Don Juan) with R, the middle letter of boyfriend, moving