Pamela Anderson Back with French Soccer BF Despite Red Flags

Pamela Anderson's on-again, off-again relationship with soccer star Adil Rami is back ON again ... but her friends see red flags.

Sources close to Pam tell TMZ ... the "Baywatch" star and World Cup champ have been back together for several weeks, but friends wish she'd 86 the relationship for various reasons. The main one ... they say Adil has tried cutting Pam off from her friends and family.

What's more ... they fear his juvenile behavior -- partying and clubbing -- isn't for Pam anymore. Her friends are adamant ... it's never gonna work long term.

Pam's friends are clear ... they want her to move on. If and when she's ready ... find someone else. Nevertheless ... easier said than done.

You'll recall it was just last July when the central defender for French club Marseille met Pam's mom. A serious sign, for sure. But, things really heated up when Adil proposed marriage. Pam said no dice and the relationship went kaput.