Are these red flags, or just indicative of a close friendship?

If a new friend flatters you a lot, gushes over the birthday gift you gave them, expresses love for you when they’ve only known you 6 months, is that unusual at all? My mum tells me it is. I’ve got a friend doing all of that and I’m wondering about their possible motives. They’re getting very attached very quickly. Is that odd at all? I tend to be a bit naive and gullible, but I found it a bit unusual, too.

Are these red flags, or just indicative of a close friendship?
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