strange reaction (jealous?)

Jul 2012
The Moon
I have a strange reaction when one of my husband co-workers calling him. She doing it once in about 2 month asking random questions (how to do taxes, how to apply for jobs, etc.) . I know that she is engaged and there is nothing there. I'm just not sure why she is on my husband for stuff like that.I can't even hear her name without being scared or so.. I guess it is normal but every time they communicate I feel upset. I'm willing to work on myself but sometimes not sure which direction. Not easy..