If you’re both over 21 years of age, and have been sleeping together for six years now with no other commitment, I doubt you’ve got a shot at anything else with this guy. No matter what he says, his actions are what you should look at, and they’re very clear.
I suspect you’re looking for a meaningful relationship that will lead to marriage and family, but this guy isn’t going to give you that. If he was going to, he would have already. Six years is a long time for you to waste with someone who only wants you for sex.
I hope you’ll move on, now, and realize there’s more to life out there than a guy who sleeps with you but doesn’t offer you a commitment.
Don’t be confused — this one’s pretty clear if you let yourself see it. 😕