Some good advice already. I would also beware of "mirroring" not just "lovebombing". It's essentially mirroring the imagined expectations and desires of you. Liking all the same things, wanting exactly the same life. Often it feels too good to be true, because it is; its an act.
Friends, look closely at the type of people they surround themselves with. They say "you are the sum of your five closest friends".
Talking about exes - if what they are telling you
doesn't make sense, it means some information is missing. So they have given you a heavily edited version.
Money - lend them some money asap and see how quickly they get it back to you. See if it weighs heavily on them or if they "forget" and need to be reminded, then you are setting yourself up for being a cashcow. I always think if you give someone money or power then you will see what they are really like.
Flattery - Compliments are nice but all too often women can fail to recognize that being desired is not the same thing as being held in high esteem. They may want a quickie rather than a real relationship.
Illness - see how they treat you when you are unwell. Are you a burden or are they caring.
More than anything listen to your gut, don't make excuses for their behaviour. Have strong ideas of what you are willing to put up with and stick to them. Put yourself first, you need to be happy. It's a risk.