The problem with having a WL or ML as your girlfriend is her stability as a loyal partner. She's use to seeing many guys throwing themselves at her and promising to give her a better life. She'll look for what's in her best interest and not yours. If you don't purchase nice items for her, someone else will do it. There will always be smooth talkers who will try to bait the girl in going with them but they are just wanting free sex.

If the girl's having sex with many guys then there are physical, mental and emotional issues that may arise as the relationship progresses. The best advice is don't get involved. Getting serious with one will highly likely result in misery for you.