I have had an easy time catching the ghosts so far, but ever since meeting Suck-ass-bee and trying to get her third animation, every ghost escapes while I am trying to capture. I keep up with the heart meter, but once it is almost full they get away,

That is because from the new update some ghost afflicts curses for having sex with them. Find Dr. Blight in the asylum. She will cure it those curses for a price. Her door is near Harleen Mannequin but not visible. If you press W like you enter a new area you will be able to find it.