If they told toi things they never meant ou when they promise toi things they never do, and when they make toi confused about almost everything, and make toi stuck with their lies. Follow your heart, your feelings, you'll know better. par asking this question i know you're not sure and having doubts, so from the beginning don't get your self into things toi know ou even doubt they will hurt toi ou cause toi any harm. it's only my opinion and i could be wrong. but no matter what just follow your heart. hope i could help...
When they 'drop hints' about something they want toi to do/give/etc to them, and toi do precisely as they hinted, then they say (usually 'most innocently') "But why did toi think I wanted that?" Someone who lead toi up the proverbial garden path like this is NOT WORTH IT.
Also: When they savage something about you, THEN PRAISE PRECISELY THAT THING IN SOMEONE ELSE. Do not endure double standards. Someone who indulges in DOUBLE STANDARDS is NOT WORTH IT.