TW Rape

I have so many stories I could tell but I kind of just want to ask a question about a recent event. My boyfriend and I have only been together for four months. Long story short, is it rape when you’re in a relationship and a previously consensual sexual relationship? Also aside from that, is it sexual assault or rape when you tell them to stop and they keep going but you eventually stop trying to get them to stop going? He said “You’re not trying to run away so you know you want it too” after I’ve already told him to stop, to which he proceeded to keep going.