What do i do?

So this last Saturday I was at my boys house and I ended up giving him a handjob in his living room turns out his mom saw and well now she says if she see's me she's gonna go off on me and my boyfriend is wildin talking about moving out he's turning 18 in a few months and I feel so bad for causing all this commotion I love his mom and she's done so much how do I apologize or what do I do