Is sex a symbol of true love? (Page 5)

There is a friend of mine she doesn't hide her feelings from me u konw two head are better than one she is so much in love with her husband and she explain to me about some certain problem she's been facing in her home and one of them was about sex that she doesn't like sex  but her husband luv sex so much he would want to sex her every time at times she will refuse and give the husband any reasons and the husband will complain  that she doesn't love him again but this lady is much in love with him beside she is a jealoeus type who would not want to see her husband with any woman like that but for sex issue every time she is finding it difficult i have been advising her to do any thing her husband want her to do to keep her marriage becos if not he'll be looking eslewhere.

and now i want to ask does it mean that if u have sex with ur partner is sign of luv and if u don't it shows u do not luv him i need u guys advise here becos i also think that one can be love in different ways.