Yes, you either crave or abhor what is allergic to you. I would suggest seeing an allergist, who can desensitize you to the strawberries...you will be able to eat them then, but you won't crave them.

Self discipline is the only other way. You don't eat them because you know better. This is a good skill for life, anyway. Don't think of what you can't have, but focus on all the good stuff you can. TC!