I'd say, regardless of your activities together, the level of play you two engage in, the use of a safeword or not (though having one is highly recommended...) regardless even, if you're entirely happy with him in all other respects...

If you're ultimately staying and playing because you don't feel you have any other options... (and I can see how one might feel that way if one feels totally economically dependent...)

If you don't feel like you could leave if you had to... you're in a dangerous situation. Because ultimately, you will relent to any activity rather than be kicked out.

That's dangerous.

The way most of us play, it's a power exchange. Something you willingly give up. So far, it sounds like something he's taken. A subtle but important difference. Which means, the more he takes (i.e., gets away with,) the more he will push your limits... until you have none... and you end up physically and/or mentally damaged or dead,

You need to talk to him about agreeing to limits... and don't dispair if he drops you... I suspect you could hook up with someone very easily... whether within the bdsm lifestyle or within a more vanilla lifestyle.

Don't be a pawn.