What a great session!

I don't see you as having taken the trigger away, avoiding it; I feel you dealt with it! You were direct and confronted the other person's behavior that was making you uneasy (same as you would have needed to do if you were "angry") and together you found a way to solve the problem. It's not like everybody's computer in every situation is a trigger to you, just this situation was and you two, together, dealt with the situation. I don't think he'll have it open/near as he did before? So, that has literally taken away the problem that needed solving.

You can't "solve" the old/bad feeling your husband's behavior gave you, that was a true/real feeling that actually happened. There was nothing wrong with you for feeling as you did, you do not want to have felt differently! But, in the present, when you see an open computer, at a certain angle, with someone you care about nearby, you are probably going to remember this session and feel good, more than you are going to think about and respond to how you felt with your husband and his computer use? I think of it as being a little like grief; you feel a certain way when someone close to you dies but, over time and with additional experiences of living you are less sad. I think your problems with seeing open computers near males you care about will lessen over time because of this session.