Q. When a new guy joined our department last year, there was a definite attraction between the two of us. But after we had a disagreement about work, he became very cautious around me.

Recently, we had to travel together on some three-day trips, and I was quite apprehensive about how things would go. Although the work went fine, I found myself acting like a silly schoolgirl and trying to sit closer to him whenever we were together. He was also sitting close, but seemed very controlled about what he said to me.

Now that we are back at the office, I feel stupid about my childish actions. I sent him an e-mail to say that I enjoyed his company and hope he did not object to my behavior. But instead of feeling better, I now feel worse than ever. Please help me salvage this working relationship, because we have to spend a lot of time together.

—EMBARRASSED

A. I don't know how far this "attraction" went, but at this point you need to let it go. Your co-worker is clearly signaling that the relationship has changed, so forget your past flirtation and focus on the job.

When you're around your former heartthrob, simply act as you would with any other male business associate. Don't become playfully flirtatious or talk about previous romantic encounters. If you continue to behave like a mature and businesslike colleague, the whole episode will eventually recede into the past.