I love him and I think he does me.
He's now told you he's married. So he thinks he has you hook line and sinker, you "love him" and you think that he does too, love you...
But usually when a married man after trying to get you interested for some time and succeeds tells you he's married, he's basically given you the hook to see if you will take the bait and that bait is this. You become his Mistress he tells you he loves you, he sees you mmm once a week, booty call. Maybe even buys you roses he will either say, he's in a loveless marriage or else he will say actually he does love his wife, she's the Mother of his Children, he can't leave her or likes her but needs to stay for the children, he may even say he will leave "one day" Or say he can't.
You have been alone for 3 years and that's all this is about, you needing, love, wanting it and do you or don't you I mean he's married, but you "think he loves you".
Let me say this, if he does have feelings for you he will not want you to be out of his life and he will leave her, in order to be with you. Any excuse of not yet, can't, children, won't , later maybe, soon, is a cop out.
You love yourself surely more than that don't you I mean you've been cheated on, so you have felt that pain, and surely as a woman you would understand the pain that his wife also will go through in the event you go down this path and she finds out.
Plenty of fish in the sea.
Don't do it.