Sex isn’t all it’s cracked up to be. The experience of loving someone else, though, can be quite different. Sex contains all kinds of feelings, and is a way of expressing love. Your bf was able to separate love from sex, and call me old-fashioned, but I think that’s a problem. I’d want to know his current feelings about that.
You can learn to be a good lover fairly easily. It hardly matters, though. What’s more important is if you and your partner make each other happy. That requires communication. You really have to be able to talk about everything, or else your hidden resentments will grow, and break out in the worst of ways. I think you really need to understand what those experiences meant to him, and how you are different from those other women. It’s kind of like asking whether he really loves you, or what does his love for you mean.
It’s really not about sex at all. It’s about your relationship. It sounds like you each need to feel better than the other in some way. I don’t know where that comes from. For me, when you love someone, you are just as proud of their accomplishments as you would be of your own. If you compete, it’s just for fun. It’s only bothered me that my wife has always made more money than I do when I feel insecure about our relationship as a whole. When I feel unloved. The rest of the time, I am sure that my contributions to the relationship are the equal of hers, and vice versa.
Every relationship is different, and I’m sure some can thrive on competition, if it is done in a friendly way. When the competition is serious, and you seriously want to get over on your partner, I worry. @sanari is giving you excellent advice when she tells you to talk to him about it. It has to be in the open, and you both need to understand what these things mean to each other.
If you can’t talk about it on your own, you can get help—from a pastor or a counselor, or someone knowledgeable about relationships whom you trust. If the first person isn’t helpful, try another, until you find someone who is good for both of you. Or work it through yourselves.
But don’t fool yourself. This is not about sex. I also don’t think it’s about you. I think it’s about the relationship, and the only way I know to deal with relationship issues is communication. You have to understand the underlying issue, and negotiate about it. If competition is the issue, you have to figure out what you want to do about it. If it makes you uncomfortable, you have to resolve that. You guys can change the way you relate if you discuss it and negotiate a solution you both can live with.