I agree with other posters that you are a very pretty girl and from the pictures you don't look as overweight as you describe yourself in your post.
Get back into cycling now! Don't wait until you lose weight to do it. I just finished a bike tour and there were all sizes of people on it. If you really don't want to get out, start with some spinning classes. I bet there are some organized rides in your area you could do in August or September before the weather turns. If you are self-conscious about the tight clothing, look into the biking skirts that are available.
Enjoy yourself, explore yourself and the relationships will follow.