When it comes to a fellow Republican who almost lunged at him last fall, Republican Rep. Matt Gaetz of Florida appears to prefer waving bye-bye rather than letting bygones be bygones. Gaetz will appear at a Feb. 16 rally as part of his effort to support a Republican challenger trying to unseat Republican Rep. Mike Bost of Illinois, according to Politico. Bost and Gaetz had a confrontation in the chaotic, emotional days after Gaetz helped engineer the downfall of former House Speaker Kevin McCarthy. During a closed-door meeting, as Gaetz stood up to speak, Bost called out, “If you don’t sit dow…