Past experiences with love will influence how people view love. Those who grew up being loved will want to be loved. However, people who were in abusive relationships may associate the abuse with love, hindering them to love. Also, people who have had their hearts severely broken will less likely fall in love again.
If lover interest's or lover's future net benefit is great or you can not do any better, recommend him/her to get professional help to resolve his/her "issues".
Avoid falling in love with the wrong people by influencing the variables of the Model.
If you came from a dysfunctional family or bad relationships, resolve your "issues" by yourself or with professional help before falling in love again.