How do you say "with love" in Welsh?

I am looking to get a tattoo with some homage to my heritage and since not many people seem to have tattoos in Welsh, it would be unique, but I do want it to be correct. If anyone speaks Welsh fluently, I would looove your help! :)

How can I learn Welsh in America?

I have used the BBC website and its fantastic and I have a few books from Wales, but are there any courses of other ways I can learn? I am Welsh and really want to learn as its part of my heritage.

I am debating getting a tattoo of this seeing as it's my heritage, and im not too strong in my pronunciation of welsh. So any help would be appreciated

Is it Welch or Welsh? (the old language from Wales)?

My family originates from Wales and a couple of my relatives pronounce the language that my grandfather and grandmother used sometimes as being "Welch" while one says "Welsh". I just want to be absolutely sure because this is my heritage after all, and it means a lot to me. Someone that is well educated in this language please please help me clear this up. Thank You.

Seeing as the Welsh left to protect their heritage in the first place it would be a betrayel if it was allowed to fade away.