What am I?

For my prefix I received ri. Now I'm insecure.

For my infix I received ul. Now I'm gloomy.

For my suffix I received pe. Now I don't converse in person.

Perhaps the gifts aren't to blame... even without them, my mood changes like the weather.

Example: If my word is hop, the riddle may go like this:

For my prefix I received s. Now I spend. (shop)

For my infix I received o. Now I'm round. (hoop)

For my suffix I received e. Now I have a wish. (hope)

I guess you are

sky

so that

risky, sulky, skype.

and of course

your mood changes like the weather, by definition of weather.

For my prefix I received ri. Now I'm insecure.

You are risky

For my infix I received ul. Now I'm gloomy.

You are sulky

For my suffix I received pe. Now I don't converse in person.

You have skype

I think you are

The sky

• Hi Herb and welcome to Puzzling :) This exact answer has already been given by WhatsUp and marked as correct, so there's no need to go adding it again. If you like trying to solve riddles here without checking others' answers, please do at least check them between solving and posting, to be sure your idea hasn't already been given already. Thanks, and Happy Puzzling!
– Stiv
Dec 17, 2020 at 17:25