The last election must have been around the recent middle-east events (framing it purposefully neutral), because I remember I had some conflicting thoughts about their stance. I can't (honestly) remember if I voted for them then or not - but I strongly considered it, that much I know.

Edit: Writing this out I think, I'm probably part of the problem. Voters should remember who they voted for and benchmark the results against their campaign pledge. Keeping politicians responsible with the little power we individuals have.

Doing that benchmarking is far more important then whether you actually voted for them last time. If you do the former then I don't think you're part of the problem.