Trying not to fall in love too fast! Need advice..

Finally found a great guy who is a good match for me. But trying not to fall in love too fast... my past relationships were toxic with my ex's emotionally abusing me, and my current romantic interest has experienced the same. I want things to work between us, so I want to take things slow but also am finding it hard because he's such a lovable guy: respectful, kind, emotionally mature, determined and hard-working.

Any tips on putting the breaks so that I can think clearly and protect myself?