I want to marriage married lady

Hello sir Sir I have a question about marriage I'm in love with one lady when she was 15 and now she is 24 but still we are in love as before we can leave each other and we wanted to merry but then question is her husband don't want to leave her and also she has one 4 year bebe boy and I want to keep him with me I'm okay with it we already ran away once for a 22 days already but then they called us back that they will do our leggle mrg but then same situation is right now all of her parents family members doing emotional black mailing and she already tried to attempt suicide then also they are not taking any action she can't go anywhere and she don't know how to file case for divorce etc. She don't have mobile else I can suggest her what to do...now the situation is we decided to be in love relationship so can I do it ? Is it possible to be in live in relation ship as she will kill her self without me what to do I'm ready to merry her..but I don't understand am also depressed from 70 kg I become 42 kg plz suggest what to do ? Thank you in advance