How I Do Overcome Being "Too Attached" In A Relationship? PLEASE HELP ME - SOMEBODY!!!?

[Belovedaftermath928]

Okay, I have a severe problem in that, when in relationships, I become far too attached to my partner and I hate it. Admittedly, I am insecure (especially in relationships) but it's a issue of which I want to overcome.

My Boyfriend of a month (although we've known eachother for 7 months) is currently away on Holiday, in Jamaica, for two weeks (with a very close "FEMALE" friend) whilst I am here, at home... Working. Also, he did book the holiday with her a couple days before we met, ironically.

I don't want to bombard him with texts and so on; I'd rather him enjoy his vacation and give him space. He has been away since Tuesday evening and we haven't spoke since Thursday morning but when we did last talk, looking back at out conversation, I feel like I was coming across as very clingy. My mind is now racing with all sorts of thoughts - especially seeing that he has had the time to create posts on fb, respond to friends' comments and post a picture of him and his friend on the beach together but not message me. :/

I don't want to be jealous but, honestly, a part of me is. He has proven to me that he is a loyal/honest/trustworthy person [and once told me that if he ever had a problem with me he would tell me and "never cheat"] but I still have my doubts. This is ALL my problem, I know, and I don't want to ruin what we have by my constant 'needy' attitude etc. How do I stop being so attached? Advice, please...