Just adding to @Mystical's answer: your second rollback should've produced a "rollback war" moderator flag automatically according to animuson's answer to
"Put an end to rollback wars".
I don't think this particular war had much potential to drag on after the third rollback anyway. I doubt most reasonable people would persist beyond that, and your opponent (for lack of a better term) seems reasonable enough. These edits he suggested were reviewed and received majority approval, as have 500 other edits he's performed. With only 64 rejected so far, that gives him an 89% approval rate in suggested edits; my approval rate here is only about 1% better than that. (I did better on Cross Validated though – tough crowd here!) He might be gaming the http://kevinx.net/labs/php/badge.php?txt=Copy%20Editor&c=g badge a little too hard, but he might have had a better reason too.
Stack Overflow seems to have a policy controversy with tag words in titles right now: see the MSO post, "Why is removing tags from the title suggested so often?" Whether the edit was worthwhile or not (seems to me the third time was really pushing it at least), it probably got accepted for a reason. Whether that reason is the policy issue above, or something to do with robo-reviewers (see also Rolling Back Approved Edits on MSO), it's worth considering that there might be a legitimate reason and room for compromise with it. Remember that once your personal question is resolved, your question may continue to be useful to the community as a whole. If you can give up a little control when others ask you to, it can sometimes get you more and better answers sooner, and make your question more useful or readily available to others after you have your answer. I admit this particular edit war over just the title might not be a good example of that principle, but @mat's comments suggest some room for debate.