<human>: Can you succinctly summarize the text in 1-3 sentences?

My last boyfriend was an amazingly convincing pathological liar. His ex was not, in fact, just a friend. And most of his business trips were not business trips. Our whole relationship was a lie. It just about wrecked me.  

I came into this new relationship kind of hesitantly, warning the guy about my past. I'm fine with my SO having female friends, but I recognize that I'm more likely to get jealous now than I was before. My boyfriend has been a complete delight, totally patient and willing to talk through anything with me.  

Unfortunately, my jealousy came to a head this weekend. I help run a cycling team, and I had recruited a new girl. She's lovely, and she's from the UK. I chatted with her a bit, but my boyfriend talked to her for quite a while. I had to remind him that we had to be somewhere.  

Today, he was asking me about her, and he texted me "That accent <3." He's never used a heart emoji or anything about me before. I just... I know it's so small, and so insignificant, but I feel sick to my stomach just thinking about it. I'm so jealous. And it brings back all of the self-blame from the last relationship. It makes me feel like I'm not good enough, and that's why no guy really wants to be with me. I'm just a placeholder.  

At this point, I'm kind of ready to throw this relationship away. I want someone who thinks I'm great, and why should I waste my time with someone who doesn't? But then again, that's an awfully strong reaction for just one text, right? I can't decide if I'm overreacting here.  

So. Yeah. One text, and I'm a mess, and I blame my ex. How do I get over my trust issues and jealousy and all of the residual bad feelings from my last relationship?
<bot>: Been cheated on. Romantically, I've moved on, but I'm having trouble trusting and not being jealous, and I don't know if I'm just projecting my past onto the present guy.