I used to be married, but my wife left me for another man and I took it very hard and thought I would never love again. Then I met someone, we chatted and over a few months fell in love and had the most wonderful relationship for just over 2 years. She was ill at christmas and with the weather I didn't see her much and around that same time I was feeling very low and needed someone to talk to.
Through a club I'm in I got chatting to a girl about the club and our events and stuff, she knew I had a partner and said she liked her, though she was a really nice girl.
I'm 36 my partner was 33 and this girl is 18. When I was feeling low she was there, we got to talking about personal stuff and there was 1 thing we really clicked on and that was the lose of a loved one, (My father, her Gran)she also then told me about things that had happened to her that she'd never told anyone else. We got close, we kissed and we slept together.
I told my partner what had happened and she was willing to give me another chance, but I felt so guilty for what I'd done to her with this other girl I was distant she felt this and she left, but for some reason she would still have me back.
In the mean time it seems that some of the bad things the young girl told me weren't entirely true, but she's since sent me a valentines car, written me two letters telling me she in love with me and given me 2 items, her gran gave her that are precious to her, to keep as she says she loves me. She likes everything I do and I like a lot of the things she does. I used to think that no one wanted me now 2 people do and I'm confused.
I still love my partner of 2 years but I don't know what these feelings are I have for this young girl and I don't want to hurt either of them.. Can anyone explain?

So, you got feelings for two ladies.

33 y.o. is already full grown person, by now she knows who she is and she knows what she wants. You already know her and you know and love the person she is. I do not know if she is seeing you as her last chance for her "mommy clock", and is willing to give up with her search for the Mr. Right who will love only her and will never cheat... Maybe she thinks that all men are same cheating pigs and she's got to accept the fact of life... If you want to be with her, you will need to work hard on getting some part of her trust again. She may forgive you, but she will never forget. Your relationship is damaged, though she is willing to take you back. But, in my book, if you love her, its worth making an effort.

18/19 y.o. is too young to know what she wants. Sorry, dude, if I were you, I'd pass. Clicking the stories sounds something teenagers do (ups, wait, but she is one?? ). Such a young girls do not only lack experience, but they don't even know what they exactly want. She genuinely believes she loves you. I am sure of that. And her young age brings adrenaline to your blood too. But do not think you actually know her. Because she doesn't know herself yet either. Right now, she will be everything she thinks you want her to be. That's how all young girls are in their beginner relationships. Later they learn they got to respect themselves and love themselves in the first place in order to be able to truly love someone else.

So, to conclude, even if you do not stay with 33 y.o, you should not be getting yourself in a relationship with a young one.