I heard this on the radio yesterday and it resonated with me. ...someone was saying that in an office environment you will often have a crush on someone (anyone?!) who is vaguely your age.
They might not be your type at all but boredom at work and the desire to make being at work more interesting means that you find yourself having a bit of a crush on them.
I'd not really had this until I got a new boss a year ago. He's really not my type ... . he's shorter than me, is a bit overweight, does my head in a bit with the way he flits from task to task, doesn't do himself any favours with how he talks to people sometimes .....but there's still something about him (and it definitely makes my days more enjoyable!)
<disclaimer ... this is meant to be light hearted. I'm not going to have a fling, I'm not condoning workplace affairs ... blah, blah, blah ....>