Oh!
This seems to be your obsession for her. I think you are confusing your sexual attraction with love and that too one sided! She is not happy with her husband (that’s what you think, has she ever told you that?) does not mean that she is ready for you! If you really love her then how can you think of taking her to adult movie, excite her through that and then kiss her?! WEIRD!! If you are 30 right now then she must be 45. At this stage her priority can not be sex and she can not give birth to baby. I think this is sufficient to make you understand that take professional help to come out of this and get yourself treated. Yes I mean it, God bless you.