According to an article I found online (from the Diocese of Madison Catholic Herald) a spouse of a man who has had a vasectomy shouldn’t initiate relations.
Specifically, it says: " Pope Pius XI addressed this issue as far back as 1930, but the clearest teaching of the Church came in a 1997 Vatican document called the Vademecum for Confessors . It notes that cooperation in the sin of one’s spouse, by continuing to engage in the marital act when the spouse has taken recourse to contraception, can be permissible when “proportionally grave reasons” exist for doing so, and when one is earnestly “seeking to help the other spouse to desist from such sinful conduct (patiently, with prayer, charity, and dialogue; although not necessarily in that moment, nor on every single occasion).”
The Vademecum and sound counselors say that participation in such an act would not be in and of itself immoral on the part of the non-contracepting spouse, but these counselors would also say that the one trying to lead the Christian life ought not to initiate sexual relations with the contracepting spouse."
Is this true? Or just the opinion of some “counselors?” Nothing I’ve read on the topic seems to forbid a spouse from initiating sex…