How do you deal with men that come on too strong over text?

He said he needed a friend and so I gave him my instagram, I didn't know he thought of me as a potential romantic interest but I guess I'm just naive! Basically within a few days he's been really needy, calling it fate, and seems to bring up everything in relation to me ("I'm thinking of getting a dog once I get a dog mom to share it with 😉") and it's all just a bit much. I'm pretty awkward and anxiety ridden so idk how to react. How have you dealt with men like this?? I have a hard time being direct because I don’t want to hurt others feelings but it's been making me uncomfortable.