Getting romantically involved just because you need love never ends well. You need to find away to live yourself first, then share that love with others. I know it is hard to do. Been there, done that. Trust me on this. Once you get right with yourself, everything else falls on line. You will not attract as many losers, because they fear strong people.
Would it be wrong to talk to someone (romantically) just becoz you need love? will it do too much psychological damage to the person doing it?
I am not being facetious here but... If you need to feel loved so badly that you would risk getting another person involved knowing it might hurt them then... Wouldn't a pet dog or cat be better. They need love and will love back. You keep speaking "romantically" but I don't think that's what it is you are deep down seeking. I think your need for feeling loved goes beyond another person. They won't be able to fix you.
No. It might give the notion of you being foot loose?
Nice girls don't do that.
Working romantic relationships online are like four-leaf clovers---they exist, but not worth the required time and effort to find. (the chance of finding a single four-leaf clover is about one in 10,000)
You asked above in one of your comments, "How do I love myself?"
I think this short article may be of significant value to you. It has a few very good suggestions
https://verilymag.com/2017/04/love-yourself-first-is-bad-dating-advice
(And please ignore my above comment to Yin---I for some reason thought this was a question posted anonymously,)