A junior helping a senior? Shame on them? Fire the senior? That sounds really foolish. You realize that junior/senior/etc are labels and someone you hire a junior can know more syntax than a senior in a framework. That's okay that the senior seeks helo.. it's natural and what a senior should do. p You are presenting your company in a bad light and making yourself sound inexperienced.
Could you have reached your limit? Would your methods fly elsewhere? Apply the len to yourself and see where you end up.