Is a affair with a women 27 years older than me love or lust ; is it going to wotk out?

I am in a relationship with a married woman who is 27 years older than I am. I am 19 year old woman and she is 46 year old woman. I find myself in total aw with her. I cannot help but wonder is it love or lust? I have never been one of those people who fall or even get attached easily at all, so this is very wierd for me. I love being around her, we go out and always have fun no matter what we do. I know that it is not right that she is married but I cannot help my self. She makes me feel like no other ever has. The age difference is a huge thing I realize but I cannot wonder am I falling in love with her or am I lusting over the scandalous situation I am in? Her marriage is a difficult situation. He is a nice guy but puts her down so much. She seems to be falling for me and I for her. I am a but this is her first time with a woman. She said it is the first time she has ever been attracted to same . I wonder if it will work out.